Index: contrib/contribs/LundPlane/tags/1.0.3/example_secondary.cc =================================================================== --- contrib/contribs/LundPlane/tags/1.0.3/example_secondary.cc (revision 0) +++ contrib/contribs/LundPlane/tags/1.0.3/example_secondary.cc (revision 1243) @@ -0,0 +1,116 @@ +//---------------------------------------------------------------------- +/// \file example_secondary.cc +/// +/// This example program is meant to illustrate how the +/// fastjet::contrib::LundWithSecondary class is used. +/// +/// Run this example with +/// +/// \verbatim +/// ./example_secondary < ../data/single-event.dat +/// \endverbatim + +//---------------------------------------------------------------------- +// $Id$ +// +// Copyright (c) -, Frederic A. Dreyer, Gavin P. Salam, Gregory Soyez +// +//---------------------------------------------------------------------- +// This file is part of FastJet contrib. +// +// It is free software; you can redistribute it and/or modify it under +// the terms of the GNU General Public License as published by the +// Free Software Foundation; either version 2 of the License, or (at +// your option) any later version. +// +// It is distributed in the hope that it will be useful, but WITHOUT +// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY +// or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public +// License for more details. +// +// You should have received a copy of the GNU General Public License +// along with this code. If not, see . +//---------------------------------------------------------------------- + +#include +#include +#include + +#include "fastjet/PseudoJet.hh" +#include +#include "LundWithSecondary.hh" // In external code, this should be fastjet/contrib/LundWithSecondary.hh +using namespace std; +using namespace fastjet; + +// forward declaration to make things clearer +void read_event(vector &event); + +//---------------------------------------------------------------------- +int main(){ + + //---------------------------------------------------------- + // read in input particles + vector event; + read_event(event); + cout << "# read an event with " << event.size() << " particles" << endl; + + // first get some anti-kt jets + double R = 1.0, ptmin = 100.0; + JetDefinition jet_def(antikt_algorithm, R); + ClusterSequence cs(event, jet_def); + vector jets = sorted_by_pt(cs.inclusive_jets(ptmin)); + + //---------------------------------------------------------- + // create an instance of LundWithSecondary, with default options + contrib::SecondaryLund_mMDT secondary; + contrib::LundWithSecondary lund(&secondary); + + cout << lund.description() << endl; + + for (unsigned ijet = 0; ijet < jets.size(); ijet++) { + cout << endl << "Lund coordinates ( ln 1/Delta, ln kt ) of declusterings of jet " + << ijet << " are:" << endl; + vector declusts = lund.primary(jets[ijet]); + + for (int idecl = 0; idecl < declusts.size(); idecl++) { + pair coords = declusts[idecl].lund_coordinates(); + cout << "["<< idecl<< "](" << coords.first << ", " << coords.second << ")"; + if (idecl < declusts.size() - 1) cout << "; "; + } + + cout << endl; + + vector sec_declusts = lund.secondary(declusts); + cout << endl << "with Lund coordinates for the secondary plane (from primary declustering [" + << lund.secondary_index(declusts) <<"]):" << endl; + for (int idecl = 0; idecl < sec_declusts.size(); ++idecl) { + pair coords = sec_declusts[idecl].lund_coordinates(); + cout << "["<< idecl<< "](" << coords.first << ", " << coords.second << ")"; + if (idecl < sec_declusts.size() - 1) cout << "; "; + } + + cout << endl; + } + + + + return 0; +} + +// read in input particles +void read_event(vector &event){ + string line; + while (getline(cin, line)) { + istringstream linestream(line); + // take substrings to avoid problems when there is extra "pollution" + // characters (e.g. line-feed). + if (line.substr(0,4) == "#END") {return;} + if (line.substr(0,1) == "#") {continue;} + double px,py,pz,E; + linestream >> px >> py >> pz >> E; + PseudoJet particle(px,py,pz,E); + + // push event onto back of full_event vector + event.push_back(particle); + } +} Property changes on: contrib/contribs/LundPlane/tags/1.0.3/example_secondary.cc ___________________________________________________________________ Added: svn:keywords ## -0,0 +1 ## +Id \ No newline at end of property Index: contrib/contribs/LundPlane/tags/1.0.3/ChangeLog =================================================================== --- contrib/contribs/LundPlane/tags/1.0.3/ChangeLog (revision 0) +++ contrib/contribs/LundPlane/tags/1.0.3/ChangeLog (revision 1243) @@ -0,0 +1,41 @@ +2020-02-23 Gavin Salam + + * NEWS: + * VERSION: + preparing for release of 1.0.3 + + * example.cc: + changed outfile open(filename) to outfile.open(filename.c_str()); + to attempt to solve issue reported by Steven Schramm. + +2018-10-26 Gavin Salam + + * read_lund_json.py: + removed extraneous normalisation of zeroth bin in + the LundImage class. + Added documentation. + + +2018-08-30 Gavin Salam + + * VERSION: + * NEWS: + + Release of version 1.0.1 + +2018-08-23 Gavin Salam + + * LundWithSecondary.hh: + * LundWithSecondary.cc: + added secondary_index(...), removed virtual qualifier from various + functions + + * example_secondary.cc: + * example_secondary.ref: + example now prints out index of the primary declustering being + used for the secondary. Referemce file updated accordingly. + +2018-08-09 Frédéric Dreyer + + First version of LundPlane. + Index: contrib/contribs/LundPlane/tags/1.0.3/LundJSON.hh =================================================================== --- contrib/contribs/LundPlane/tags/1.0.3/LundJSON.hh (revision 0) +++ contrib/contribs/LundPlane/tags/1.0.3/LundJSON.hh (revision 1243) @@ -0,0 +1,78 @@ +#ifndef __FASTJET_CONTRIB_LUNDJSON_HH__ +#define __FASTJET_CONTRIB_LUNDJSON_HH__ + +#include "LundGenerator.hh" + +FASTJET_BEGIN_NAMESPACE + +namespace contrib{ + +// declaration of helper function +void lund_elements_to_json(std::ostream & ostr, const LundDeclustering & d); + +/// writes json to ostr for an individual declustering +inline std::ostream & lund_to_json(std::ostream & ostr, const LundDeclustering & d) { + // /// we hardcode 6 digits of precision -- is this the right way to do things? + // int prec_store = ostr.precision(); + // ostr.precision(6); + + ostr << "{"; + lund_elements_to_json(ostr, d); + ostr << "}"; + + return ostr; +} + + +/// writes json to ostr for a vector of declusterings +inline std::ostream & lund_to_json(std::ostream & ostr, const std::vector & d) { + ostr << "["; + for (std::size_t i = 0; i < d.size(); i++) { + if (i != 0) ostr << ","; + lund_to_json(ostr, d[i]); + } + ostr << "]"; + return ostr; +} + +// /// writes a full Lund tree recursively to JSON +// inline std::ostream & lund_to_json(std::ostream & ostr, const LundGenerator & generator, const PseudoJet & jet) { +// // we will use these below in the loop; declare them here to avoid +// // repeated creation/destruction +// PseudoJet p1,p2; +// std::vector d = generator(jet); +// ostr << "["; +// for (std::size_t i = 0; i < d.size(); i++) { +// if (i != 0) ostr << ","; +// ostr << "{"; +// lund_elements_to_json(ostr, d[i]); +// // add in information on the leaf if it exists +// if (d[i].softer().has_parents(p1,p2)) { +// ostr << ","; +// ostr << "\"leaf\":"; +// lund_to_json(ostr, generator, d[i].softer()); +// } +// ostr << "}"; +// } +// ostr << "]"; +// return ostr; +// } + +// helper function to write individual elements to json +inline void lund_elements_to_json(std::ostream & ostr, const LundDeclustering & d) { + ostr << "\"p_pt\":" << d.pair() .pt() << ","; + ostr << "\"p_m\":" << d.pair() .m () << ","; + ostr << "\"h_pt\":" << d.harder().pt() << ","; + ostr << "\"s_pt\":" << d.softer().pt() << ","; + ostr << "\"z\":" << d.z() << ","; + ostr << "\"Delta\":" << d.Delta() << ","; + ostr << "\"kt\":" << d.kt() << ","; + ostr << "\"psi\":" << d.psi() ; +} + + +} // namespace contrib + +FASTJET_END_NAMESPACE + +#endif // __FASTJET_CONTRIB_LUNDJSON_HH__ Property changes on: contrib/contribs/LundPlane/tags/1.0.3/LundJSON.hh ___________________________________________________________________ Added: svn:keywords ## -0,0 +1 ## +Id \ No newline at end of property Index: contrib/contribs/LundPlane/tags/1.0.3/LundWithSecondary.cc =================================================================== --- contrib/contribs/LundPlane/tags/1.0.3/LundWithSecondary.cc (revision 0) +++ contrib/contribs/LundPlane/tags/1.0.3/LundWithSecondary.cc (revision 1243) @@ -0,0 +1,77 @@ +// $Id$ +// +// Copyright (c) -, Frederic A. Dreyer, Gavin P. Salam, Gregory Soyez +// +//---------------------------------------------------------------------- +// This file is part of FastJet contrib. +// +// It is free software; you can redistribute it and/or modify it under +// the terms of the GNU General Public License as published by the +// Free Software Foundation; either version 2 of the License, or (at +// your option) any later version. +// +// It is distributed in the hope that it will be useful, but WITHOUT +// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY +// or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public +// License for more details. +// +// You should have received a copy of the GNU General Public License +// along with this code. If not, see . +//---------------------------------------------------------------------- + +#include "LundWithSecondary.hh" +#include + +FASTJET_BEGIN_NAMESPACE // defined in fastjet/internal/base.hh + +namespace contrib{ + +//---------------------------------------------------------------------- +/// return LundDeclustering sequence of primary plane +std::vector LundWithSecondary::primary(const PseudoJet& jet) const { + return lund_gen_(jet); +} + +//---------------------------------------------------------------------- +/// return LundDeclustering sequence of secondary plane (slow version) +std::vector LundWithSecondary::secondary(const PseudoJet& jet) const { + // this is not optimal as one is computing the primary plane twice. + std::vector declusts = lund_gen_(jet); + return secondary(declusts); +} +//---------------------------------------------------------------------- +/// return LundDeclustering sequence of secondary plane with primary sequence as input +std::vector LundWithSecondary::secondary( + const std::vector & declusts) const { + + int sec_index = secondary_index(declusts); + // if we found the index of secondary emission, return its declustering sequence + if (sec_index >= 0) { + return lund_gen_(declusts[sec_index].softer()); + } else { + return std::vector(); + } +} + +//---------------------------------------------------------------------- +/// return the index associated of the primary declustering that is to be +/// used for the secondary plane. +int LundWithSecondary::secondary_index(const std::vector & declusts) const { + if (secondary_def_ == 0) { + throw Error("secondary class is a null pointer, cannot identify element to use for secondary plane"); + } + return (*secondary_def_)(declusts); +} + +//---------------------------------------------------------------------- +/// description +std::string LundWithSecondary::description() const { + std::ostringstream oss; + oss << "LundWithSecondary using " << secondary_def_->description() + << " and " << lund_gen_.description(); + return oss.str(); +} + +} // namespace contrib + +FASTJET_END_NAMESPACE Property changes on: contrib/contribs/LundPlane/tags/1.0.3/LundWithSecondary.cc ___________________________________________________________________ Added: svn:keywords ## -0,0 +1 ## +Id \ No newline at end of property Index: contrib/contribs/LundPlane/tags/1.0.3/LundGenerator.cc =================================================================== --- contrib/contribs/LundPlane/tags/1.0.3/LundGenerator.cc (revision 0) +++ contrib/contribs/LundPlane/tags/1.0.3/LundGenerator.cc (revision 1243) @@ -0,0 +1,75 @@ +// $Id$ +// +// Copyright (c) -, Frederic A. Dreyer, Gavin P. Salam, Gregory Soyez +// +//---------------------------------------------------------------------- +// This file is part of FastJet contrib. +// +// It is free software; you can redistribute it and/or modify it under +// the terms of the GNU General Public License as published by the +// Free Software Foundation; either version 2 of the License, or (at +// your option) any later version. +// +// It is distributed in the hope that it will be useful, but WITHOUT +// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY +// or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public +// License for more details. +// +// You should have received a copy of the GNU General Public License +// along with this code. If not, see . +//---------------------------------------------------------------------- + +#include +#include "LundGenerator.hh" + +FASTJET_BEGIN_NAMESPACE // defined in fastjet/internal/base.hh + +namespace contrib{ + +LundDeclustering::LundDeclustering(const PseudoJet& pair, + const PseudoJet& j1, const PseudoJet& j2) + : m_(pair.m()), Delta_(j1.delta_R(j2)), pair_(pair) { + + // establish which of j1 and j2 is softer + if (j1.pt2() > j2.pt2()) { + harder_ = j1; + softer_ = j2; + } else { + harder_ = j2; + softer_ = j1; + } + + // now work out the various Lund declustering variables + double softer_pt = softer_.pt(); + z_ = softer_pt / (softer_pt + harder_.pt()); + kt_ = softer_pt * Delta_; + psi_ = atan2(softer_.rap()-harder_.rap(), harder_.delta_phi_to(softer_)); + kappa_ = z_ * Delta_; +} + +//---------------------------------------------------------------------- +/// retrieve the vector of declusterings of the primary plane of a jet +std::vector LundGenerator::result(const PseudoJet& jet) const { + std::vector result; + PseudoJet j = recluster_(jet); + PseudoJet pair, j1, j2; + pair = j; + while (pair.has_parents(j1, j2)) { + if (j1.pt2() < j2.pt2()) std::swap(j1,j2); + result.push_back(LundDeclustering(pair, j1, j2)); + pair = j1; + } + return result; +} + +//---------------------------------------------------------------------- +/// description +std::string LundGenerator::description() const { + std::ostringstream oss; + oss << "LundGenerator with " << recluster_.description(); + return oss.str(); +} + +} // namespace contrib + +FASTJET_END_NAMESPACE Property changes on: contrib/contribs/LundPlane/tags/1.0.3/LundGenerator.cc ___________________________________________________________________ Added: svn:keywords ## -0,0 +1 ## +Id \ No newline at end of property Index: contrib/contribs/LundPlane/tags/1.0.3/README =================================================================== --- contrib/contribs/LundPlane/tags/1.0.3/README (revision 0) +++ contrib/contribs/LundPlane/tags/1.0.3/README (revision 1243) @@ -0,0 +1,46 @@ +------------------------------------------------------------------------ +LundPlane FastJet contrib +------------------------------------------------------------------------ + +The LundPlane FastJet contrib provides tools necessary to construct +the Lund Plane of a jet. + +It is based on arXiv:1807.04758 by Frederic Dreyer, Gavin Salam, and +Gregory Soyez. + +It provides the following C++ classes: + +- LundDeclustering + Contains the declustering variables associated with a node on + the Lund plane. + +- LundGenerator + A tool to generate a vector of LundDeclustering for a given jet + corresponding to its primary Lund plane. + +- LundWithSecondary + A tool to generate primary, and secondary, lund planes of a jet + according to the definition given as input. + +- SecondaryLund, SecondaryLund_{mMDT|dotmMDT|Mass} + Provides a definition for the leading emission. + +There are two C++ examples which can be compiled with + +> make example example_secondary + +The example program can be run using +> ./example < ../data/single-event.dat + +and will output the primary lund plane declusterings as well as +generating a jets.json file, which can be read by a python script: + +> python3 ./example.py + +Some python classes to assist with reading and processing the json file +are provided in the read_lund_json.py module. + +The example_secondary program outputs both the primary and secondary +Lund plane declusterings to screen, and can be run with: + +> ./example_secondary < ../data/single-event.dat \ No newline at end of file Index: contrib/contribs/LundPlane/tags/1.0.3/SecondaryLund.cc =================================================================== --- contrib/contribs/LundPlane/tags/1.0.3/SecondaryLund.cc (revision 0) +++ contrib/contribs/LundPlane/tags/1.0.3/SecondaryLund.cc (revision 1243) @@ -0,0 +1,123 @@ +// $Id$ +// +// Copyright (c) 2018-, Frederic A. Dreyer, Gavin P. Salam, Gregory Soyez +// +//---------------------------------------------------------------------- +// This file is part of FastJet contrib. +// +// It is free software; you can redistribute it and/or modify it under +// the terms of the GNU General Public License as published by the +// Free Software Foundation; either version 2 of the License, or (at +// your option) any later version. +// +// It is distributed in the hope that it will be useful, but WITHOUT +// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY +// or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public +// License for more details. +// +// You should have received a copy of the GNU General Public License +// along with this code. If not, see . +//---------------------------------------------------------------------- + +#include "SecondaryLund.hh" +#include +#include +#include + + +FASTJET_BEGIN_NAMESPACE // defined in fastjet/internal/base.hh + +namespace contrib{ + +//---------------------------------------------------------------------- +/// retrieve the vector of declusterings of the secondary plane of a jet +int SecondaryLund_mMDT::result(const std::vector& declusts) const { + // iterate through primary branchings + for (int i=0; i < declusts.size(); ++i) { + // mMDTZ: find the first emission passing z>zcut + if (declusts[i].z() > zcut_) return i; + } + return -1; +} + +int SecondaryLund_dotmMDT::result(const std::vector& declusts) const { + // set up leading emission pointer and bookkeeping variables + int secondary_index = -1; + double dot_prod_max = 0.0; + + // iterate through primary branchings + for (int i=0; i < declusts.size(); ++i) { + // dotmMDTZ: find emission passing z>zcut with largest dot product + if (declusts[i].z() > zcut_) { + double dot_prod = declusts[i].harder().pt()*declusts[i].softer().pt() + *declusts[i].Delta()*declusts[i].Delta(); + if (dot_prod > dot_prod_max) { + dot_prod_max = dot_prod; + secondary_index = i; + } + } + } + + // return index of secondary emission + return secondary_index; +} + + +int SecondaryLund_Mass::result(const std::vector& declusts) const { + // set up leading emission pointer and bookkeeping variables + int secondary_index = -1; + double mass_diff = std::numeric_limits::max(); + + // iterate through primary branchings + for (int i=0; i < declusts.size(); ++i) { + // Mass: find emission that minimises the distance to reference mass + double dist = + std::abs(log(declusts[i].harder().pt()*declusts[i].softer().pt() + * declusts[i].Delta()*declusts[i].Delta() / mref2_) + * log(1.0/declusts[i].z())); + if (dist < mass_diff) { + mass_diff = dist; + secondary_index = i; + } + } + + // return index of secondary emission + return secondary_index; +} + + +//---------------------------------------------------------------------- +/// description +std::string SecondaryLund::description() const { + std::ostringstream oss; + oss << "SecondaryLund"; + return oss.str(); +} + +//---------------------------------------------------------------------- +/// description +std::string SecondaryLund_mMDT::description() const { + std::ostringstream oss; + oss << "SecondaryLund (mMDT selection of leading emission, zcut=" << zcut_<<")"; + return oss.str(); +} + +//---------------------------------------------------------------------- +/// description +std::string SecondaryLund_dotmMDT::description() const { + std::ostringstream oss; + oss << "SecondaryLund (dotmMDT selection of leading emission, zcut=" << zcut_<<")"; + return oss.str(); +} + +//---------------------------------------------------------------------- +/// description +std::string SecondaryLund_Mass::description() const { + std::ostringstream oss; + oss << " (Mass selection of leading emission, m="<. +//---------------------------------------------------------------------- + +#ifndef __FASTJET_CONTRIB_LUNDWITHSECONDARY_HH__ +#define __FASTJET_CONTRIB_LUNDWITHSECONDARY_HH__ + +#include "LundGenerator.hh" +#include "SecondaryLund.hh" + +FASTJET_BEGIN_NAMESPACE + +namespace contrib{ + +//---------------------------------------------------------------------- +/// \class LundWithSecondary +/// Define a primary and secondary Lund plane +/// +/// \param secondary_def definition used for the leading emission. +// +class LundWithSecondary { +public: + /// LundWithSecondary constructor + LundWithSecondary(SecondaryLund * secondary_def = 0) + : secondary_def_(secondary_def) {} + + /// LundWithSecondary constructor with jet alg + LundWithSecondary(JetAlgorithm jet_alg, + SecondaryLund * secondary_def = 0) + : lund_gen_(jet_alg), secondary_def_(secondary_def) {} + + /// LundWithSecondary constructor with jet def + LundWithSecondary(const JetDefinition & jet_def, + SecondaryLund * secondary_def = 0) + : lund_gen_(jet_def), secondary_def_(secondary_def) {} + + /// destructor + virtual ~LundWithSecondary() {} + + /// primary Lund declustering + std::vector primary(const PseudoJet& jet) const; + + /// secondary Lund declustering (slow) + std::vector secondary(const PseudoJet& jet) const; + + /// secondary Lund declustering with primary sequence as input + std::vector secondary( + const std::vector & declusts) const; + + /// return the index associated of the primary declustering that is to be + /// used for the secondary plane. + int secondary_index(const std::vector & declusts) const; + + /// description of the class + std::string description() const; + +private: + /// lund generator + LundGenerator lund_gen_; + + /// secondary definition + SecondaryLund * secondary_def_; +}; + + +// //---------------------------------------------------------------------- +// /// \class LundWithSecondaryAndTertiary +// /// Define a primary, secondary and tertiary Lund plane +// class LundWithSecondaryAndTertiary : public LundWithSecondary { +// public: +// /// LundWithSecondaryAndTertiary constructor +// LundWithSecondaryAndTertiary(SecondaryLund * secondary_def = 0, +// SecondaryLund * tertiary_def = 0) +// : LundWithSecondary(secondary_def), tertiary_def_(tertiary_def) {} + +// /// LundWithSecondaryAndTertiary constructor with jet alg +// LundWithSecondaryAndTertiary(JetAlgorithm jet_alg, +// SecondaryLund * secondary_def = 0, +// SecondaryLund * tertiary_def = 0) +// : LundWithSecondary(jet_alg, secondary_def), tertiary_def_(tertiary_def) {} + +// /// LundWithSecondaryAndTertiary constructor with jet def +// LundWithSecondaryAndTertiary(const JetDefinition & jet_def, +// SecondaryLund * secondary_def = 0, +// SecondaryLund * tertiary_def = 0) +// : LundWithSecondary(jet_def, secondary_def), tertiary_def_(tertiary_def) {} + +// /// destructor +// virtual ~LundWithSecondaryAndTertiary() {} + +// /// tertiary Lund declustering +// virtual std::vector tertiary(const PseudoJet& jet) const; + +// /// description of the class +// virtual std::string description() const; + +// private: +// /// tertiary definition +// SecondaryLund * tertiary_def_; +// }; + + +} // namespace contrib + +FASTJET_END_NAMESPACE + +#endif // __FASTJET_CONTRIB_LUNDWITHSECONDARY_HH__ + Property changes on: contrib/contribs/LundPlane/tags/1.0.3/LundWithSecondary.hh ___________________________________________________________________ Added: svn:keywords ## -0,0 +1 ## +Id \ No newline at end of property Index: contrib/contribs/LundPlane/tags/1.0.3/example.ref =================================================================== --- contrib/contribs/LundPlane/tags/1.0.3/example.ref (revision 0) +++ contrib/contribs/LundPlane/tags/1.0.3/example.ref (revision 1243) @@ -0,0 +1,24 @@ +# read an event with 354 particles +# writing declusterings of primary and secondary plane to file jets.json +#-------------------------------------------------------------------------- +# FastJet release 3.3.0 +# M. Cacciari, G.P. Salam and G. Soyez +# A software package for jet finding and analysis at colliders +# http://fastjet.fr +# +# Please cite EPJC72(2012)1896 [arXiv:1111.6097] if you use this package +# for scientific work and optionally PLB641(2006)57 [hep-ph/0512210]. +# +# FastJet is provided without warranty under the terms of the GNU GPLv2. +# It uses T. Chan's closest pair algorithm, S. Fortune's Voronoi code +# and 3rd party plugin jet algorithms. See COPYING file for details. +#-------------------------------------------------------------------------- +LundGenerator with Recluster with new_jet_def = Longitudinally invariant Cambridge/Aachen algorithm with R = 1000 and E scheme recombination and keeping the hardest inclusive jet + +Lund coordinates ( ln 1/Delta, ln kt ) of declusterings of jet 0 are: +(0.381818, -1.41338); (0.640225, -1.41382); (0.815003, -0.521976); (1.11695, -2.1319); (1.33942, -3.472); (1.52885, -2.46979); (1.56466, -0.0358016); (2.02807, -0.558102); (2.34917, 1.00406); (2.51877, -1.94794); (2.95973, -1.06118); (3.36119, -3.71927); (3.83009, -1.04409); (3.91026, 1.04294); (4.25234, -0.800966); (4.77749, -0.461738); (5.43338, -0.520936); (5.54091, -1.07405); (5.81939, -0.573153) + +Lund coordinates ( ln 1/Delta, ln kt ) of declusterings of jet 1 are: +(0.108166, 0.409011); (0.478032, -0.762435); (0.5522, 1.69309); (0.814643, -0.89172); (0.87725, 0.291102); (1.17301, 0.430816); (1.46257, -2.02855); (2.04689, -3.19764); (2.19256, -0.828099); (2.86474, -1.09304); (2.98768, -1.21793); (3.3634, -0.355632); (4.17428, -0.227052); (4.59144, 0.645512); (4.86343, -2.29314); (5.8172, -2.47791) + +File jets.json written. Index: contrib/contribs/LundPlane/tags/1.0.3/LundGenerator.hh =================================================================== --- contrib/contribs/LundPlane/tags/1.0.3/LundGenerator.hh (revision 0) +++ contrib/contribs/LundPlane/tags/1.0.3/LundGenerator.hh (revision 1243) @@ -0,0 +1,137 @@ +// $Id$ +// +// Copyright (c) 2018-, Frederic A. Dreyer, Gavin P. Salam, Gregory Soyez +// +//---------------------------------------------------------------------- +// This file is part of FastJet contrib. +// +// It is free software; you can redistribute it and/or modify it under +// the terms of the GNU General Public License as published by the +// Free Software Foundation; either version 2 of the License, or (at +// your option) any later version. +// +// It is distributed in the hope that it will be useful, but WITHOUT +// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY +// or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public +// License for more details. +// +// You should have received a copy of the GNU General Public License +// along with this code. If not, see . +//---------------------------------------------------------------------- + +#ifndef __FASTJET_CONTRIB_LUNDGENERATOR_HH__ +#define __FASTJET_CONTRIB_LUNDGENERATOR_HH__ + +#include +#include "fastjet/tools/Recluster.hh" +#include "fastjet/JetDefinition.hh" +#include "fastjet/PseudoJet.hh" +#include +#include +#include + +// TODO: +// - add interface to write declusterings to json files +// [gps, possibly as a separate header, in order to factorise the json.hh dependence] +// - something for pileup subtraction? +// - do we want to update json.hh to latest? And handle +// the precision issue more elegantly than the current +// hack of editing json.hh +// - what do we do about the fact that json.hh is c++11? + +FASTJET_BEGIN_NAMESPACE + +namespace contrib{ + +class LundGenerator; + +//---------------------------------------------------------------------- +/// \class LundDeclustering +/// Contains the declustering variables associated with a single qnode +/// on the Lund plane +class LundDeclustering { +public: + + /// return the pair PseudoJet, i.e. sum of the two subjets + const PseudoJet & pair() const {return pair_;} + /// returns the subjet with larger transverse momentum + const PseudoJet & harder() const {return harder_;} + /// returns the subjet with smaller transverse momentum + const PseudoJet & softer() const {return softer_;} + + + /// returns pair().m() [cached] + double m() const {return m_;} + + /// returns the rapidity-azimuth separation of the pair of subjets [cached] + double Delta() const {return Delta_;} + + /// returns softer().pt() / (softer().pt() + harder().pt()) [cached] + double z() const {return z_;} + + /// returns softer().pt() * Delta() [cached] + double kt() const {return kt_;} + + /// returns z() * Delta() [cached] + double kappa() const {return kappa_;} + + /// returns an azimuthal type angle of softer() around harder() + double psi() const {return psi_;} + + /// returns the x,y coordinates that are used in the Lund-plane plots + /// of arXiv:1807.04758: ln(1/Delta()), and ln(kt()) respectively + std::pair const lund_coordinates() const { + return std::pair(std::log(1.0/Delta()),std::log(kt())); + } + + virtual ~LundDeclustering() {} + +private: + double m_, Delta_, z_, kt_, kappa_, psi_; + PseudoJet pair_, harder_, softer_; + +protected: + /// the constructor is private, because users will not generally be + /// constructing a LundDeclustering element themselves. + LundDeclustering(const PseudoJet& pair, + const PseudoJet& j1, const PseudoJet& j2); + + friend class LundGenerator; + +}; + + +//---------------------------------------------------------------------- +/// \class LundGenerator +/// Generates vector of LundDeclustering for a given jet +/// corresponding to its Lund plane. +class LundGenerator : public FunctionOfPseudoJet< std::vector > { +public: + /// LundGenerator constructor + LundGenerator(JetAlgorithm jet_alg = cambridge_algorithm) + : recluster_(JetDefinition(jet_alg, JetDefinition::max_allowable_R)){} + + /// LundGenerator constructor with jet definition + LundGenerator(const JetDefinition & jet_def) : recluster_(jet_def){} + + /// destructor + virtual ~LundGenerator() {} + + /// obtain the declusterings of the primary plane of the jet + virtual std::vector result(const PseudoJet& jet) const; + + /// description of the class + virtual std::string description() const; + +private: + /// recluster definition + Recluster recluster_; +}; + + +} // namespace contrib + +FASTJET_END_NAMESPACE + +#endif // __FASTJET_CONTRIB_LUNDGENERATOR_HH__ + Property changes on: contrib/contribs/LundPlane/tags/1.0.3/LundGenerator.hh ___________________________________________________________________ Added: svn:keywords ## -0,0 +1 ## +Id \ No newline at end of property Index: contrib/contribs/LundPlane/tags/1.0.3/SecondaryLund.hh =================================================================== --- contrib/contribs/LundPlane/tags/1.0.3/SecondaryLund.hh (revision 0) +++ contrib/contribs/LundPlane/tags/1.0.3/SecondaryLund.hh (revision 1243) @@ -0,0 +1,121 @@ +// $Id$ +// +// Copyright (c) 2018-, Frederic A. Dreyer, Gavin P. Salam, Gregory Soyez +// +//---------------------------------------------------------------------- +// This file is part of FastJet contrib. +// +// It is free software; you can redistribute it and/or modify it under +// the terms of the GNU General Public License as published by the +// Free Software Foundation; either version 2 of the License, or (at +// your option) any later version. +// +// It is distributed in the hope that it will be useful, but WITHOUT +// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY +// or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public +// License for more details. +// +// You should have received a copy of the GNU General Public License +// along with this code. If not, see . +//---------------------------------------------------------------------- + +#ifndef __FASTJET_CONTRIB_SECONDARYLUND_HH__ +#define __FASTJET_CONTRIB_SECONDARYLUND_HH__ + +#include "LundGenerator.hh" + +FASTJET_BEGIN_NAMESPACE + +namespace contrib{ + +//---------------------------------------------------------------------- +/// \class SecondaryLund +/// Base class for definitions of the leading emission +class SecondaryLund { +public: + /// SecondaryLund constructor + SecondaryLund() {} + + /// destructor + virtual ~SecondaryLund() {} + + /// returns the index of branch corresponding to the root of the secondary plane + virtual int result(const std::vector & declusts) const = 0; + + int operator()(const std::vector & declusts) const { + return result(declusts); + } + + /// description of the class + virtual std::string description() const; +}; + +//---------------------------------------------------------------------- +/// \class SecondaryLund_mMDT +/// Contains a definition for the leading emission using mMDTZ +class SecondaryLund_mMDT : public SecondaryLund { +public: + /// SecondaryLund_mMDT constructor + SecondaryLund_mMDT(double zcut = 0.025) : zcut_(zcut) {} + + /// destructor + virtual ~SecondaryLund_mMDT() {} + + /// returns the index of branch corresponding to the root of the secondary plane + virtual int result(const std::vector & declusts) const; + + /// description of the class + virtual std::string description() const; +private: + /// zcut parameter + double zcut_; +}; + +//---------------------------------------------------------------------- +/// \class SecondaryLund_dotmMDT +/// Contains a definition for the leading emission using dotmMDT +class SecondaryLund_dotmMDT : public SecondaryLund { +public: + /// SecondaryLund_dotmMDT constructor + SecondaryLund_dotmMDT(double zcut = 0.025) : zcut_(zcut) {} + + /// destructor + virtual ~SecondaryLund_dotmMDT() {} + + /// returns the index of branch corresponding to the root of the secondary plane + virtual int result(const std::vector & declusts) const; + + /// description of the class + virtual std::string description() const; + +private: + /// zcut parameter + double zcut_; +}; + +//---------------------------------------------------------------------- +/// \class SecondaryLund_Mass +/// Contains a definition for the leading emission using mass +class SecondaryLund_Mass : public SecondaryLund { +public: + /// SecondaryLund_Mass constructor (default mass reference is W mass) + SecondaryLund_Mass(double ref_mass = 80.4) : mref2_(ref_mass*ref_mass) {} + + /// destructor + virtual ~SecondaryLund_Mass() {} + + /// returns the index of branch corresponding to the root of the secondary plane + virtual int result(const std::vector & declusts) const; + + /// description of the class + virtual std::string description() const; +private: + double mref2_; +}; + +} // namespace contrib + +FASTJET_END_NAMESPACE + +#endif // __FASTJET_CONTRIB_SECONDARYLUND_HH__ + Property changes on: contrib/contribs/LundPlane/tags/1.0.3/SecondaryLund.hh ___________________________________________________________________ Added: svn:keywords ## -0,0 +1 ## +Id \ No newline at end of property Index: contrib/contribs/LundPlane/tags/1.0.3/COPYING =================================================================== --- contrib/contribs/LundPlane/tags/1.0.3/COPYING (revision 0) +++ contrib/contribs/LundPlane/tags/1.0.3/COPYING (revision 1243) @@ -0,0 +1,343 @@ +====================================================================== +====================================================================== +====================================================================== + GNU GENERAL PUBLIC LICENSE + Version 2, June 1991 + + Copyright (C) 1989, 1991 Free Software Foundation, Inc. + 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The licenses for most software are designed to take away your +freedom to share and change it. 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Index: contrib/contribs/LundPlane/tags/1.0.3/NEWS =================================================================== --- contrib/contribs/LundPlane/tags/1.0.3/NEWS (revision 0) +++ contrib/contribs/LundPlane/tags/1.0.3/NEWS (revision 1243) @@ -0,0 +1,4 @@ +2020/02/23: release of version 1.0.3 +- fixes issue with C++98 compatibility +2018/10/29: release of version 1.0.2 +2018/08/30: release of version 1.0.1 Index: contrib/contribs/LundPlane/tags/1.0.3/read_lund_json.py =================================================================== --- contrib/contribs/LundPlane/tags/1.0.3/read_lund_json.py (revision 0) +++ contrib/contribs/LundPlane/tags/1.0.3/read_lund_json.py (revision 1243) @@ -0,0 +1,224 @@ +#---------------------------------------------------------------------- +# $Id$ +# +# Copyright (c) -, Frederic A. Dreyer, Gavin P. Salam, Gregory Soyez +# +#---------------------------------------------------------------------- +# This file is part of FastJet contrib. +# +# It is free software; you can redistribute it and/or modify it under +# the terms of the GNU General Public License as published by the +# Free Software Foundation; either version 2 of the License, or (at +# your option) any later version. +# +# It is distributed in the hope that it will be useful, but WITHOUT +# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY +# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public +# License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this code. If not, see . +#---------------------------------------------------------------------- + +from abc import ABC, abstractmethod +import numpy as np +from math import log, ceil, cos, sin +import json, gzip, sys + +#====================================================================== +class Reader(object): + """ + Reader for files consisting of a sequence of json objects, one per + line Any pure string object is considered to be part of a header + (even if it appears at the end!). + + Once you have created a Reader, it is a standard Python iterable + object. Each iteration gives the json entry for one jet's + declustering. + """ + #---------------------------------------------------------------------- + def __init__(self, infile, nmax = -1): + self.infile = infile + self.nmax = nmax + self.reset() + + #---------------------------------------------------------------------- + def set_nmax(self, nmax): + self.nmax = nmax + + #---------------------------------------------------------------------- + def reset(self): + """ + Reset the reader to the start of the file, clear the header and event count. + """ + if self.infile.endswith('.gz'): + self.stream = gzip.open(self.infile,'r') + else: + self.stream = open(self.infile,'r') + self.n = 0 + self.header = [] + + #---------------------------------------------------------------------- + def __iter__(self): + # needed for iteration to work + return self + + #---------------------------------------------------------------------- + def __next__(self): + ev = self.next_event() + if (ev is None): raise StopIteration + else : return ev + + #---------------------------------------------------------------------- + def next(self): return self.__next__() + + #---------------------------------------------------------------------- + def next_event(self): + + # we have hit the maximum number of events + if (self.n == self.nmax): + #print ("# Exiting after having read nmax jet declusterings") + return None + + try: + line = self.stream.readline() + if self.infile.endswith('.gz'): + j = json.loads(line.decode('utf-8')) + else: + j = json.loads(line) + except IOError: + print("# got to end with IOError (maybe gzip structure broken?) around event", self.n, file=sys.stderr) + return None + except EOFError: + print("# got to end with EOFError (maybe gzip structure broken?) around event", self.n, file=sys.stderr) + return None + except ValueError: + print("# got to end with ValueError (empty json entry?) around event", self.n, file=sys.stderr) + return None + + # skip this + if (type(j) is str): + self.header.append(j) + return self.next_event() + self.n += 1 + return j + +#====================================================================== +class Image(ABC): + """ + Abstract base class for batch processing Lund declusterings + """ + def __init__(self, infile, nmax=-1): + if (type(infile) is Reader): + self.reader = infile + self.reader.set_nmax(nmax) + else: + self.reader = Reader(infile, nmax) + + #---------------------------------------------------------------------- + @abstractmethod + def process(self, event): + pass + + #---------------------------------------------------------------------- + def values(self): + """Return the values of each event in the reader.""" + res = [] + while True: + event = self.reader.next_event() + if event!=None: + res.append(self.process(event)) + else: + break + self.reader.reset() + return res + + +#====================================================================== +class LundImage(Image): + """ + Class to take input file (or a reader) of jet declusterings in json + format, one json entry per line, and transform it into lund images. + + - infile: a filename or a reader + - nmax: the maximum number of jets to process + - npxl: the number of bins (pixels) in each dimension + - xval: the range of x (ln 1/Delta) values + - yval: the range of y (ln kt) values + + Once you've created the class, call values() (inherited the abstract + base class) and you will get a python list of images (formatted as + 2d numpy arrays). + """ + #---------------------------------------------------------------------- + def __init__(self, infile, nmax, npxl, xval = [0.0, 7.0], yval = [-3.0, 7.0]): + Image.__init__(self, infile, nmax) + self.npxl = npxl + self.xmin = xval[0] + self.ymin = yval[0] + self.x_pxl_wdth = (xval[1] - xval[0])/npxl + self.y_pxl_wdth = (yval[1] - yval[0])/npxl + + #---------------------------------------------------------------------- + def process(self, event): + """Process an event and return an image of the primary Lund plane.""" + res = np.zeros((self.npxl,self.npxl)) + + for declust in event: + x = log(1.0/declust['Delta']) + y = log(declust['kt']) + psi = declust['psi'] + xind = ceil((x - self.xmin)/self.x_pxl_wdth - 1.0) + yind = ceil((y - self.ymin)/self.y_pxl_wdth - 1.0) + # print((x - self.xmin)/self.x_pxl_wdth,xind, + # (y - self.ymin)/self.y_pxl_wdth,yind,':', + # declust['delta_R'],declust['pt2']) + if (max(xind,yind) < self.npxl and min(xind, yind) >= 0): + res[xind,yind] += 1 + return res + +#====================================================================== +class LundDense(Image): + """ + Class to take input file (or a reader) of jet declusterings in json + format, one json entry per line, and reduces them to the minimal + information needed as an input to LSTM or dense network learning. + + - infile: a filename or a reader + - nmax: the maximum number of jets to process + - nlen: the size of the output array (for each jet), zero padded + if the declustering sequence is shorter; if the declustering + sequence is longer, entries beyond nlen are discarded. + + Calling values() returns a python list, each entry of which is a + numpy array of dimension (nlen,2). values()[i,:] = + (log(1/Delta),log(kt)) for declustering i. + """ + #---------------------------------------------------------------------- + def __init__(self,infile, nmax, nlen): + Image.__init__(self, infile, nmax) + self.nlen = nlen + + #---------------------------------------------------------------------- + def process(self, event): + """Process an event and return an array of declusterings.""" + res = np.zeros((self.nlen, 2)) + # go over the declusterings and fill the res array + # with the Lund coordinates + for i in range(self.nlen): + if (i >= len(event)): + break + res[i,:] = self.fill_declust(event[i]) + + return res + + #---------------------------------------------------------------------- + def fill_declust(self,declust): + """ + Create an array of size two and fill it with the Lund coordinates + (log(1/Delta),log(kt)). + """ + res = np.zeros(2) + res[0] = log(1.0/declust['Delta']) + res[1] = log(declust['kt']) + return res Property changes on: contrib/contribs/LundPlane/tags/1.0.3/read_lund_json.py ___________________________________________________________________ Added: svn:keywords ## -0,0 +1 ## +Id \ No newline at end of property Index: contrib/contribs/LundPlane/tags/1.0.3/jets.json =================================================================== --- contrib/contribs/LundPlane/tags/1.0.3/jets.json (revision 0) +++ contrib/contribs/LundPlane/tags/1.0.3/jets.json (revision 1243) @@ -0,0 +1,2 @@ +[{"p_pt":983.387,"p_m":39.9912,"h_pt":983.065,"s_pt":0.356448,"z":0.000362457,"Delta":0.68262,"kt":0.243318,"psi":-2.27417},{"p_pt":983.065,"p_m":35.4172,"h_pt":982.621,"s_pt":0.461349,"z":0.000469289,"Delta":0.527174,"kt":0.243211,"psi":-1.02664},{"p_pt":982.621,"p_m":32.8883,"h_pt":981.294,"s_pt":1.34048,"z":0.00136417,"Delta":0.442638,"kt":0.593347,"psi":1.90151},{"p_pt":981.294,"p_m":28.3702,"h_pt":980.937,"s_pt":0.362421,"z":0.000369328,"Delta":0.327275,"kt":0.118611,"psi":0.992173},{"p_pt":980.937,"p_m":27.6178,"h_pt":980.823,"s_pt":0.118531,"z":0.000120834,"Delta":0.261998,"kt":0.0310549,"psi":-0.211632},{"p_pt":980.823,"p_m":27.4721,"h_pt":980.44,"s_pt":0.39026,"z":0.000397887,"Delta":0.216785,"kt":0.0846025,"psi":-2.67709},{"p_pt":980.44,"p_m":27.1382,"h_pt":975.839,"s_pt":4.61293,"z":0.0047049,"Delta":0.209158,"kt":0.964832,"psi":1.92125},{"p_pt":975.839,"p_m":22.6675,"h_pt":971.523,"s_pt":4.34909,"z":0.00445662,"Delta":0.131589,"kt":0.572294,"psi":0.338527},{"p_pt":971.523,"p_m":20.8426,"h_pt":943.03,"s_pt":28.5948,"z":0.0294298,"Delta":0.0954486,"kt":2.72933,"psi":2.68233},{"p_pt":943.03,"p_m":11.414,"h_pt":941.26,"s_pt":1.76973,"z":0.00187664,"Delta":0.0805586,"kt":0.142567,"psi":1.69815},{"p_pt":941.26,"p_m":10.9196,"h_pt":934.585,"s_pt":6.67619,"z":0.00709282,"Delta":0.0518329,"kt":0.346046,"psi":-1.28412},{"p_pt":934.585,"p_m":9.95054,"h_pt":933.886,"s_pt":0.699017,"z":0.000747944,"Delta":0.0346941,"kt":0.0242518,"psi":-0.167118},{"p_pt":933.886,"p_m":9.90727,"h_pt":917.674,"s_pt":16.2161,"z":0.017364,"Delta":0.0217076,"kt":0.352012,"psi":-2.98636},{"p_pt":917.674,"p_m":8.70484,"h_pt":776.048,"s_pt":141.627,"z":0.154333,"Delta":0.0200353,"kt":2.83755,"psi":-1.32753},{"p_pt":776.048,"p_m":4.85364,"h_pt":744.504,"s_pt":31.5438,"z":0.0406467,"Delta":0.0142308,"kt":0.448895,"psi":1.2169},{"p_pt":744.504,"p_m":3.50525,"h_pt":669.635,"s_pt":74.87,"z":0.100563,"Delta":0.00841709,"kt":0.630187,"psi":2.33366},{"p_pt":669.635,"p_m":1.98393,"h_pt":533.665,"s_pt":135.971,"z":0.203052,"Delta":0.00436831,"kt":0.593964,"psi":-0.741957},{"p_pt":533.665,"p_m":1.39886,"h_pt":446.581,"s_pt":87.0835,"z":0.16318,"Delta":0.00392294,"kt":0.341623,"psi":1.56933},{"p_pt":446.581,"p_m":1.01822,"h_pt":256.731,"s_pt":189.851,"z":0.42512,"Delta":0.00296941,"kt":0.563745,"psi":0.535213}] +[{"p_pt":908.098,"p_m":87.7124,"h_pt":906.441,"s_pt":1.67729,"z":0.00184699,"Delta":0.897478,"kt":1.50533,"psi":-1.74757},{"p_pt":906.441,"p_m":79.121,"h_pt":905.698,"s_pt":0.752464,"z":0.000830121,"Delta":0.620002,"kt":0.466529,"psi":1.82802},{"p_pt":905.698,"p_m":76.7744,"h_pt":897.753,"s_pt":9.44311,"z":0.0104091,"Delta":0.575682,"kt":5.43623,"psi":0.0793599},{"p_pt":897.753,"p_m":41.7543,"h_pt":896.907,"s_pt":0.925819,"z":0.00103117,"Delta":0.442797,"kt":0.40995,"psi":2.81067},{"p_pt":896.907,"p_m":38.1389,"h_pt":893.73,"s_pt":3.21669,"z":0.00358627,"Delta":0.415925,"kt":1.3379,"psi":-1.18555},{"p_pt":893.73,"p_m":26.2828,"h_pt":888.803,"s_pt":4.97201,"z":0.00556294,"Delta":0.309435,"kt":1.53851,"psi":-2.02065},{"p_pt":888.803,"p_m":12.7422,"h_pt":888.25,"s_pt":0.567807,"z":0.000638834,"Delta":0.23164,"kt":0.131527,"psi":-3.02721},{"p_pt":888.25,"p_m":11.5241,"h_pt":887.935,"s_pt":0.3164,"z":0.000356205,"Delta":0.129135,"kt":0.0408584,"psi":-0.509985},{"p_pt":887.935,"p_m":11.3171,"h_pt":884.026,"s_pt":3.91361,"z":0.00440752,"Delta":0.111631,"kt":0.436879,"psi":2.01504},{"p_pt":884.026,"p_m":8.95196,"h_pt":878.154,"s_pt":5.88085,"z":0.00665227,"Delta":0.0569981,"kt":0.335197,"psi":2.92986},{"p_pt":878.154,"p_m":7.93364,"h_pt":872.286,"s_pt":5.86934,"z":0.00668371,"Delta":0.0504045,"kt":0.295841,"psi":-1.28543},{"p_pt":872.286,"p_m":7.04265,"h_pt":852.055,"s_pt":20.2422,"z":0.0232056,"Delta":0.0346173,"kt":0.700731,"psi":0.0528261},{"p_pt":852.055,"p_m":5.24347,"h_pt":800.269,"s_pt":51.7916,"z":0.060784,"Delta":0.0153863,"kt":0.79688,"psi":-3.13262},{"p_pt":800.269,"p_m":4.03811,"h_pt":612.176,"s_pt":188.097,"z":0.235041,"Delta":0.0101382,"kt":1.90696,"psi":0.854257},{"p_pt":612.176,"p_m":0.796087,"h_pt":599.106,"s_pt":13.0696,"z":0.0213494,"Delta":0.00772393,"kt":0.100949,"psi":-1.93659},{"p_pt":599.106,"p_m":0.403809,"h_pt":570.907,"s_pt":28.199,"z":0.0470685,"Delta":0.00297593,"kt":0.0839182,"psi":0.118626}] Index: contrib/contribs/LundPlane/tags/1.0.3/example_secondary.ref =================================================================== --- contrib/contribs/LundPlane/tags/1.0.3/example_secondary.ref (revision 0) +++ contrib/contribs/LundPlane/tags/1.0.3/example_secondary.ref (revision 1243) @@ -0,0 +1,27 @@ +# read an event with 354 particles +#-------------------------------------------------------------------------- +# FastJet release 3.3.0-devel +# M. Cacciari, G.P. Salam and G. Soyez +# A software package for jet finding and analysis at colliders +# http://fastjet.fr +# +# Please cite EPJC72(2012)1896 [arXiv:1111.6097] if you use this package +# for scientific work and optionally PLB641(2006)57 [hep-ph/0512210]. +# +# FastJet is provided without warranty under the terms of the GNU GPLv2. +# It uses T. Chan's closest pair algorithm, S. Fortune's Voronoi code, +# CGAL and 3rd party plugin jet algorithms. See COPYING file for details. +#-------------------------------------------------------------------------- +LundWithSecondary using SecondaryLund (mMDT selection of leading emission, zcut=0.025) and LundGenerator with Recluster with new_jet_def = Longitudinally invariant Cambridge/Aachen algorithm with R = 1000 and E scheme recombination and keeping the hardest inclusive jet + +Lund coordinates ( ln 1/Delta, ln kt ) of declusterings of jet 0 are: +[0](0.381818, -1.41338); [1](0.640225, -1.41382); [2](0.815003, -0.521976); [3](1.11695, -2.1319); [4](1.33942, -3.472); [5](1.52885, -2.46979); [6](1.56466, -0.0358016); [7](2.02807, -0.558102); [8](2.34917, 1.00406); [9](2.51877, -1.94794); [10](2.95973, -1.06118); [11](3.36119, -3.71927); [12](3.83009, -1.04409); [13](3.91026, 1.04294); [14](4.25234, -0.800966); [15](4.77749, -0.461738); [16](5.43338, -0.520936); [17](5.54091, -1.07405); [18](5.81939, -0.573153) + +with Lund coordinates for the secondary plane (from primary declustering [8]): +[0](2.95691, -1.89881); [1](3.39155, -1.95856); [2](3.87725, -1.79439) + +Lund coordinates ( ln 1/Delta, ln kt ) of declusterings of jet 1 are: +[0](0.108166, 0.409011); [1](0.478032, -0.762435); [2](0.5522, 1.69309); [3](0.814643, -0.89172); [4](0.87725, 0.291102); [5](1.17301, 0.430816); [6](1.46257, -2.02855); [7](2.04689, -3.19764); [8](2.19256, -0.828099); [9](2.86474, -1.09304); [10](2.98768, -1.21793); [11](3.3634, -0.355632); [12](4.17428, -0.227052); [13](4.59144, 0.645512); [14](4.86343, -2.29314); [15](5.8172, -2.47791) + +with Lund coordinates for the secondary plane (from primary declustering [12]): + Index: contrib/contribs/LundPlane/tags/1.0.3/Makefile =================================================================== --- contrib/contribs/LundPlane/tags/1.0.3/Makefile (revision 0) +++ contrib/contribs/LundPlane/tags/1.0.3/Makefile (revision 1243) @@ -0,0 +1,84 @@ +# If you are using this Makefile standalone and fastjet-config is not +# in your path, edit this line to specify the full path +FASTJETCONFIG=fastjet-config +PREFIX=`$(FASTJETCONFIG) --prefix` +CXX=g++ +CXXFLAGS= -O3 -Wall -g +install_script = $(SHELL) ../utils/install-sh +check_script = ../utils/check.sh + +# global contrib-wide Makefile include may override some of the above +# variables (leading "-" means don't give an error if you can't find +# the file) +-include ../.Makefile.inc + +#------------------------------------------------------------------------ +# things that are specific to this contrib +NAME=LundPlane +SRCS=LundGenerator.cc LundWithSecondary.cc SecondaryLund.cc +EXAMPLES=example example_secondary +INSTALLED_HEADERS=LundGenerator.hh LundWithSecondary.hh SecondaryLund.hh LundJSON.hh +#------------------------------------------------------------------------ + +CXXFLAGS+= $(shell $(FASTJETCONFIG) --cxxflags) +LDFLAGS += -lm $(shell $(FASTJETCONFIG) --libs) + +OBJS = $(SRCS:.cc=.o) +EXAMPLES_SRCS = $(EXAMPLES:=.cc) + +install_HEADER = $(install_script) -c -m 644 +install_LIB = $(install_script) -c -m 644 +install_DIR = $(install_script) -d +install_DATA = $(install_script) -c -m 644 +install_PROGRAM = $(install_script) -c -s +install_SCRIPT = $(install_script) -c + +.PHONY: clean distclean examples check install + +# compilation of the code (default target) +all: lib$(NAME).a + +lib$(NAME).a: $(OBJS) + ar cru lib$(NAME).a $(OBJS) + ranlib lib$(NAME).a + +# building the examples +examples: $(EXAMPLES) + +# the following construct makes it possible to automatically build +# each of the examples listed in $EXAMPLES +$(EXAMPLES): % : %.o all + $(CXX) $(CXXFLAGS) -o $@ $< -L. -l$(NAME) $(LDFLAGS) + +# check that everything went fine +check: examples + @for prog in $(EXAMPLES); do\ + $(check_script) $${prog} ../data/single-event.dat || exit 1; \ + done + @echo "All tests successful" + +# cleaning the directory +clean: + rm -f *~ *.o + +distclean: clean + rm -f lib$(NAME).a $(EXAMPLES) + +# install things in PREFIX/... +install: all + $(install_DIR) $(PREFIX)/include/fastjet/contrib + for header in $(INSTALLED_HEADERS); do\ + $(install_HEADER) $$header $(PREFIX)/include/fastjet/contrib/;\ + done + $(install_DIR) $(PREFIX)/lib + $(install_LIB) lib$(NAME).a $(PREFIX)/lib + +depend: + makedepend -Y -- -- $(SRCS) $(EXAMPLES_SRCS) +# DO NOT DELETE + +LundGenerator.o: LundGenerator.hh +LundWithSecondary.o: LundWithSecondary.hh LundGenerator.hh SecondaryLund.hh +SecondaryLund.o: SecondaryLund.hh LundGenerator.hh +example.o: LundGenerator.hh SecondaryLund.hh LundJSON.hh +example_secondary.o: LundWithSecondary.hh LundGenerator.hh SecondaryLund.hh Index: contrib/contribs/LundPlane/tags/1.0.3/example.cc =================================================================== --- contrib/contribs/LundPlane/tags/1.0.3/example.cc (revision 0) +++ contrib/contribs/LundPlane/tags/1.0.3/example.cc (revision 1243) @@ -0,0 +1,118 @@ +//---------------------------------------------------------------------- +/// \file example.cc +/// +/// This example program is meant to illustrate how the +/// fastjet::contrib::LundGenerator class is used. +/// +/// Run this example with +/// +/// \verbatim +/// ./example < ../data/single-event.dat +/// \endverbatim + +//---------------------------------------------------------------------- +// $Id$ +// +// Copyright (c) -, Frederic A. Dreyer, Gavin P. Salam, Gregory Soyez +// +//---------------------------------------------------------------------- +// This file is part of FastJet contrib. +// +// It is free software; you can redistribute it and/or modify it under +// the terms of the GNU General Public License as published by the +// Free Software Foundation; either version 2 of the License, or (at +// your option) any later version. +// +// It is distributed in the hope that it will be useful, but WITHOUT +// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY +// or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public +// License for more details. +// +// You should have received a copy of the GNU General Public License +// along with this code. If not, see . +//---------------------------------------------------------------------- + +#include +#include +#include + +#include "fastjet/PseudoJet.hh" +#include +#include "LundGenerator.hh" // In external code, this should be fastjet/contrib/LundGenerator.hh +#include "LundJSON.hh" // In external code, this should be fastjet/contrib/LundJSON.hh +using namespace std; +using namespace fastjet; + +// forward declaration to make things clearer +void read_event(vector &event); + +//---------------------------------------------------------------------- +int main(){ + + //---------------------------------------------------------- + // read in input particles + vector event; + read_event(event); + string filename = "jets.json"; + cout << "# read an event with " << event.size() << " particles" << endl; + cout << "# writing declusterings of primary and secondary plane to file " + << filename << endl; + + ofstream outfile; + outfile.open(filename.c_str()); + + // first get some anti-kt jets + double R = 1.0, ptmin = 100.0; + JetDefinition jet_def(antikt_algorithm, R); + ClusterSequence cs(event, jet_def); + vector jets = sorted_by_pt(cs.inclusive_jets(ptmin)); + + //---------------------------------------------------------- + // create an instance of LundGenerator, with default options + contrib::LundGenerator lund; + + cout << lund.description() << endl; + + for (unsigned ijet = 0; ijet < jets.size(); ijet++) { + cout << endl << "Lund coordinates ( ln 1/Delta, ln kt ) of declusterings of jet " + << ijet << " are:" << endl; + vector declusts = lund(jets[ijet]); + + for (int idecl = 0; idecl < declusts.size(); idecl++) { + pair coords = declusts[idecl].lund_coordinates(); + cout << "(" << coords.first << ", " << coords.second << ")"; + if (idecl < declusts.size() - 1) cout << "; "; + } + + cout << endl; + + // outputs the primary Lund plane + lund_to_json(outfile, declusts); outfile << endl; + // outputs the full Lund tree + //to_json(cout, lund_gen, jets[ijet]); cout << endl; + } + + cout << endl << "File " << filename << " written." << endl; + + + + return 0; +} + +// read in input particles +void read_event(vector &event){ + string line; + while (getline(cin, line)) { + istringstream linestream(line); + // take substrings to avoid problems when there is extra "pollution" + // characters (e.g. line-feed). + if (line.substr(0,4) == "#END") {return;} + if (line.substr(0,1) == "#") {continue;} + double px,py,pz,E; + linestream >> px >> py >> pz >> E; + PseudoJet particle(px,py,pz,E); + + // push event onto back of full_event vector + event.push_back(particle); + } +} Property changes on: contrib/contribs/LundPlane/tags/1.0.3/example.cc ___________________________________________________________________ Added: svn:keywords ## -0,0 +1 ## +Id \ No newline at end of property Index: contrib/contribs/LundPlane/tags/1.0.3/example.py =================================================================== --- contrib/contribs/LundPlane/tags/1.0.3/example.py (revision 0) +++ contrib/contribs/LundPlane/tags/1.0.3/example.py (revision 1243) @@ -0,0 +1,83 @@ +#!/usr/bin/env python3 +# +#---------------------------------------------------------------------- +# $Id$ +# +# Copyright (c) -, Frederic A. Dreyer, Gavin P. Salam, Gregory Soyez +# +#---------------------------------------------------------------------- +# This file is part of FastJet contrib. +# +# It is free software; you can redistribute it and/or modify it under +# the terms of the GNU General Public License as published by the +# Free Software Foundation; either version 2 of the License, or (at +# your option) any later version. +# +# It is distributed in the hope that it will be useful, but WITHOUT +# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY +# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public +# License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this code. If not, see . +#---------------------------------------------------------------------- +# +# Load a sample file and plot it. +# +# Usage: +# python3 plot_lund.py [--file filename] [--bkg file_bkg] +# [--njet njet] [--npxl npixels] +# + +import read_lund_json as lund +#from import LundImage +from matplotlib.colors import LogNorm +import numpy as np +import matplotlib.pyplot as plt +import argparse + +parser = argparse.ArgumentParser(description='Plot lund images') +parser.add_argument('--file', action = 'store', default = 'jets.json') +parser.add_argument('--njet', type = int, default = 2, help='Maximum number of jets to analyse') +parser.add_argument('--npxl', type = int, default = 25, help="Number of pixels in each dimension of the image") + +args = parser.parse_args() + +# set up the reader and get array from file +xval = [0.0, 3.0] +yval = [-3.0, 5.0] + +# start by creating a reader for the json file produced by example.cc +# (one json entry per line, correspond to one jet per json entry) +reader = lund.Reader(args.file, args.njet) + +# Then examine the jets it contains +print ("Contents of the file", args.file) +for jet in reader: + # jet is an array of declusterings. + # The jet's pt can be obtained by looking at the first declustering (jet[0]) + # and extracting the subjet-pair pt ("p_pt") + print(" Jet with pt = {:6.1f} GeV with {:3d} primary Lund-plane declusterings".format(jet[0]["p_pt"], len(jet))) +print() + +# Reset the reader to the start and use it with a helper +# class to extract an image for each jet +reader.reset() +image_generator = lund.LundImage(reader, args.njet, args.npxl, xval, yval) +images = image_generator.values() + +# Get the average of the images +print("Now creating average lund image from the {} jets".format(len(images))) +avg_img = np.average(images,axis=0) + +# Plot the result +fig=plt.figure(figsize=(6, 4.5)) +plt.title('Averaged Lund image') +plt.xlabel('$\ln(R / \Delta)$') +plt.ylabel('$\ln(k_t / \mathrm{GeV})$') +plt.imshow(avg_img.transpose(), origin='lower', aspect='auto', + extent=xval+yval, cmap=plt.get_cmap('BuPu')) +plt.colorbar() + +print("Close the viewer window to exit") +plt.show() Property changes on: contrib/contribs/LundPlane/tags/1.0.3/example.py ___________________________________________________________________ Added: svn:executable ## -0,0 +1 ## +* \ No newline at end of property Added: svn:keywords ## -0,0 +1 ## +Id \ No newline at end of property Index: contrib/contribs/LundPlane/tags/1.0.3/AUTHORS =================================================================== --- contrib/contribs/LundPlane/tags/1.0.3/AUTHORS (revision 0) +++ contrib/contribs/LundPlane/tags/1.0.3/AUTHORS (revision 1243) @@ -0,0 +1,12 @@ +The LundPlane FastJet contrib is developed and maintained by: + + Frederic Dreyer + Gavin P. Salam + Gregory Soyez + +The physics is based on: + + The Lund Jet Plane. + Frederic A. Dreyer, Gavin P. Salam, and Gregory Soyez + arXiv:1807.04758 + Index: contrib/contribs/LundPlane/tags/1.0.3/VERSION =================================================================== --- contrib/contribs/LundPlane/tags/1.0.3/VERSION (revision 0) +++ contrib/contribs/LundPlane/tags/1.0.3/VERSION (revision 1243) @@ -0,0 +1 @@ +1.0.3 Index: contrib/contribs/LundPlane/tags/1.0.3 =================================================================== --- contrib/contribs/LundPlane/tags/1.0.3 (revision 1242) +++ contrib/contribs/LundPlane/tags/1.0.3 (revision 1243) Property changes on: contrib/contribs/LundPlane/tags/1.0.3 ___________________________________________________________________ Added: svn:ignore ## -0,0 +1,3 ## +# Added by svn-ignore on 2018-08-23 +example +example_secondary