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diff --git a/MatrixElement/Matchbox/Base/SubtractedME.cc b/MatrixElement/Matchbox/Base/SubtractedME.cc
--- a/MatrixElement/Matchbox/Base/SubtractedME.cc
+++ b/MatrixElement/Matchbox/Base/SubtractedME.cc
@@ -1,717 +1,721 @@
// -*- C++ -*-
//
// SubtractedME.h is a part of Herwig++ - A multi-purpose Monte Carlo event generator
// Copyright (C) 2002-2012 The Herwig Collaboration
//
// Herwig++ is licenced under version 2 of the GPL, see COPYING for details.
// Please respect the MCnet academic guidelines, see GUIDELINES for details.
//
//
// This is the implementation of the non-inlined, non-templated member
// functions of the SubtractedME class.
//
#include "SubtractedME.h"
#include "ThePEG/Interface/ClassDocumentation.h"
#include "ThePEG/Interface/Reference.h"
#include "ThePEG/Interface/RefVector.h"
#include "ThePEG/Interface/Switch.h"
#include "ThePEG/Interface/Parameter.h"
#include "ThePEG/Utilities/DescribeClass.h"
#include "ThePEG/Repository/Repository.h"
#include "ThePEG/Repository/EventGenerator.h"
#include "ThePEG/Cuts/Cuts.h"
#include "ThePEG/Handlers/StdXCombGroup.h"
#include "ThePEG/Utilities/Rebinder.h"
#include "ThePEG/Utilities/Throw.h"
#include "ThePEG/Persistency/PersistentOStream.h"
#include "ThePEG/Persistency/PersistentIStream.h"
#include "Herwig++/MatrixElement/Matchbox/Dipoles/SubtractionDipole.h"
#include "Herwig++/MatrixElement/Matchbox/Base/DipoleRepository.h"
#include "Herwig++/MatrixElement/Matchbox/Utility/MatchboxXCombGroup.h"
#include "Herwig++/MatrixElement/Matchbox/MatchboxFactory.h"
using namespace Herwig;
SubtractedME::SubtractedME()
: MEGroup(),
theRealShowerSubtraction(false), theVirtualShowerSubtraction(false) {}
SubtractedME::~SubtractedME() {}
Ptr<MatchboxFactory>::tcptr SubtractedME::factory() const { return theFactory; }
void SubtractedME::factory(Ptr<MatchboxFactory>::tcptr f) { theFactory = f; }
bool SubtractedME::subProcessGroups() const {
return
(factory()->subProcessGroups() && !(showerApproximation() || inclusive())) ||
factory()->subtractionData() != "";
}
bool SubtractedME::inclusive() const { return factory()->inclusive(); }
Ptr<ShowerApproximation>::tptr SubtractedME::showerApproximation() const { return factory()->showerApproximation(); }
const vector<Ptr<MatchboxMEBase>::ptr>& SubtractedME::borns() const { return factory()->bornMEs(); }
bool SubtractedME::verbose() const { return factory()->verbose(); }
IBPtr SubtractedME::clone() const {
return new_ptr(*this);
}
IBPtr SubtractedME::fullclone() const {
return new_ptr(*this);
}
StdXCombPtr SubtractedME::makeXComb(Energy newMaxEnergy, const cPDPair & inc,
tEHPtr newEventHandler,tSubHdlPtr newSubProcessHandler,
tPExtrPtr newExtractor, tCascHdlPtr newCKKW,
const PBPair & newPartonBins, tCutsPtr newCuts,
const DiagramVector & newDiagrams, bool mir,
const PartonPairVec& allPBins,
tStdXCombPtr newHead,
tMEPtr newME) {
tMEGroupPtr newMEGroup = dynamic_ptr_cast<tMEGroupPtr>(newME);
if ( !newMEGroup )
newMEGroup = this;
Ptr<MatchboxXCombGroup>::ptr res =
new_ptr(MatchboxXCombGroup(newMaxEnergy, inc,
newEventHandler, newSubProcessHandler,
newExtractor, newCKKW,
newPartonBins, newCuts, newMEGroup,
newDiagrams, mir,
newHead));
res->build(allPBins);
theReal->prepareXComb(*res);
if ( factory()->subtractionData() != "" ) {
set<cPDVector> procs;
for ( DiagramVector::const_iterator d = head()->diagrams().begin();
d != head()->diagrams().end(); ++d ) {
if ( procs.find((**d).partons()) == procs.end() )
procs.insert((**d).partons());
}
for ( set<cPDVector>::const_iterator p = procs.begin();
p != procs.end(); ++p ) {
for ( size_t i = 0; i < (*p).size(); ++i ) {
if ( !(*p)[i]->coloured() )
continue;
if ( i > 1 &&
(*p)[i]->id() == ParticleID::g ) {
softHistograms[SoftSubtractionIndex(*p,i)] = SubtractionHistogram(0.001,10.);
if ( theReal->phasespace() )
res->singularLimits().insert(make_pair(i,i));
}
for ( size_t j = i+1; j < (*p).size(); ++j ) {
if ( !(*p)[j]->coloured() )
continue;
long iid = (*p)[i]->id();
long jid = (*p)[j]->id();
if ( i < 2 && j < 2 )
continue;
if ( i < 2 && j > 1 ) {
if ( abs(iid) < 7 && abs(jid) < 7 && iid != jid )
continue;
}
if ( i > 1 && j > 1 ) {
if ( abs(iid) < 7 && abs(jid) < 7 && iid + jid != 0 )
continue;
}
bool haveDipole = false;
for ( MEVector::const_iterator k = dependent().begin();
k != dependent().end(); ++k ) {
const SubtractionDipole& dip = dynamic_cast<const SubtractionDipole&>(**k);
if ( ( (size_t)(dip.realEmitter()) == i && (size_t)(dip.realEmission()) == j ) ||
( (size_t)(dip.realEmitter()) == j && (size_t)(dip.realEmission()) == i ) ) {
haveDipole = true;
break;
}
}
if ( !haveDipole )
continue;
collinearHistograms[CollinearSubtractionIndex(*p,make_pair(i,j))] = SubtractionHistogram(0.001,20.);
if ( theReal->phasespace() )
res->singularLimits().insert(make_pair(i,j));
}
}
}
}
return res;
}
void SubtractedME::setXComb(tStdXCombPtr xc) {
MEGroup::setXComb(xc);
lastMatchboxXComb(xc);
}
MEBase::DiagramVector SubtractedME::dependentDiagrams(const cPDVector& proc,
tMEPtr depME) const {
Ptr<SubtractionDipole>::tptr dipole =
dynamic_ptr_cast<Ptr<SubtractionDipole>::tptr>(depME);
if ( !dipole ) {
Throw<InitException>() << "A dependent matrix element of SubtractedME "
<< "has not been derived from SubtractionDipole. "
<< "Please check the corresponding input file.";
}
return dipole->underlyingBornDiagrams(proc);
}
vector<Ptr<SubtractionDipole>::ptr> SubtractedME::dipoles() {
if ( dependent().empty() )
getDipoles();
vector<Ptr<SubtractionDipole>::ptr> res;
for ( MEVector::const_iterator k = dependent().begin();
k != dependent().end(); ++k )
res.push_back(dynamic_ptr_cast<Ptr<SubtractionDipole>::ptr>(*k));
return res;
}
void SubtractedME::getDipoles() {
if ( !dependent().empty() )
return;
Ptr<MatchboxMEBase>::tptr real =
dynamic_ptr_cast<Ptr<MatchboxMEBase>::tptr>(head());
if ( borns().empty() || !real )
Throw<InitException>() << "The SubtractedME '"
<< name() << "' could not generate "
<< "subtraction terms for the real emission "
<< "matrix element '" << real->name() << "'. "
<< "Please check the corresponding input file.";
Ptr<MatchboxMEBase>::ptr myRealEmissionME = real->cloneMe();
ostringstream pname;
pname << fullName() << "/" << myRealEmissionME->name();
if ( ! (generator()->preinitRegister(myRealEmissionME,pname.str()) ) )
throw InitException() << "Matrix element " << pname.str() << " already existing.";
myRealEmissionME->cloneDependencies(pname.str());
head(myRealEmissionME);
real = myRealEmissionME;
MEVector dipMEs;
vector<Ptr<SubtractionDipole>::ptr> genDipoles
= real->getDipoles(DipoleRepository::dipoles(),borns());
if ( factory()->subtractionData() != "" ) {
for ( vector<Ptr<SubtractionDipole>::ptr>::const_iterator d =
genDipoles.begin(); d != genDipoles.end(); ++d )
(**d).doTestSubtraction();
}
if ( genDipoles.empty() ) {
// probably finite real contribution, but warn
generator()->log() << "\nWarning: No subtraction dipoles could be found for the processes:\n";
for ( vector<PDVector>::const_iterator s = real->subProcesses().begin();
s != real->subProcesses().end(); ++s ) {
generator()->log() << (*s)[0]->PDGName() << " " << (*s)[1]->PDGName()
<< " -> ";
for ( PDVector::const_iterator p = s->begin() + 2; p != s->end(); ++p )
generator()->log() << (**p).PDGName() << " ";
generator()->log() << "\n" << flush;
}
generator()->log() << "Assuming finite tree-level O(alphaS) correction.\n";
}
dipMEs.resize(genDipoles.size());
copy(genDipoles.begin(),genDipoles.end(),dipMEs.begin());
dependent() = dipMEs;
}
void SubtractedME::cloneRealME(const string& prefix) {
theReal = dynamic_ptr_cast<Ptr<MatchboxMEBase>::tptr>(head());
if ( theReal ) {
Ptr<MatchboxMEBase>::ptr myRealEmissionME = theReal->cloneMe();
ostringstream pname;
pname << (prefix == "" ? fullName() : prefix) << "/" << myRealEmissionME->name();
if ( ! (generator()->preinitRegister(myRealEmissionME,pname.str()) ) )
throw InitException() << "Matrix element " << pname.str() << " already existing.";
myRealEmissionME->cloneDependencies(pname.str());
theReal = myRealEmissionME;
}
head(theReal);
}
void SubtractedME::cloneDipoles(const string& prefix) {
MEVector dipMEs;
for ( MEVector::const_iterator m = dependent().begin();
m != dependent().end(); ++m ) {
Ptr<SubtractionDipole>::tptr dip =
dynamic_ptr_cast<Ptr<SubtractionDipole>::tptr>(*m);
assert(dip);
Ptr<SubtractionDipole>::ptr cloned = dip->cloneMe();
ostringstream pname;
pname << (prefix == "" ? fullName() : prefix) << "/" << cloned->name();
if ( ! (generator()->preinitRegister(cloned,pname.str()) ) )
throw InitException() << "Subtraction dipole " << pname.str() << " already existing.";
cloned->cloneDependencies(pname.str());
dipMEs.push_back(cloned);
}
dependent() = dipMEs;
}
vector<Ptr<SubtractionDipole>::ptr> SubtractedME::splitDipoles(const cPDVector& born) {
vector<Ptr<SubtractionDipole>::ptr> dips = dipoles();
vector<Ptr<SubtractionDipole>::ptr> res;
for ( vector<Ptr<SubtractionDipole>::ptr>::iterator d = dips.begin();
d != dips.end(); ++d ) {
for ( DiagramVector::const_iterator p = (**d).underlyingBornME()->diagrams().begin();
p != (**d).underlyingBornME()->diagrams().end(); ++p )
if ( born == (**p).partons() ) {
res.push_back(*d);
break;
}
}
return res;
}
void SubtractedME::doRealEmissionScales() {
for ( MEVector::const_iterator m = dependent().begin();
m != dependent().end(); ++m ) {
Ptr<SubtractionDipole>::tptr dip =
dynamic_ptr_cast<Ptr<SubtractionDipole>::tptr>(*m);
assert(dip);
dip->doRealEmissionScales();
}
}
void SubtractedME::doRealShowerSubtraction() {
theRealShowerSubtraction = true;
for ( MEVector::const_iterator m = dependent().begin();
m != dependent().end(); ++m ) {
Ptr<SubtractionDipole>::tptr dip =
dynamic_ptr_cast<Ptr<SubtractionDipole>::tptr>(*m);
assert(dip);
dip->showerApproximation(showerApproximation());
dip->doRealShowerSubtraction();
}
}
void SubtractedME::doVirtualShowerSubtraction() {
theVirtualShowerSubtraction = true;
for ( MEVector::const_iterator m = dependent().begin();
m != dependent().end(); ++m ) {
Ptr<SubtractionDipole>::tptr dip =
dynamic_ptr_cast<Ptr<SubtractionDipole>::tptr>(*m);
assert(dip);
dip->showerApproximation(showerApproximation());
dip->doVirtualShowerSubtraction();
}
}
void SubtractedME::setVetoScales(tSubProPtr) const {}
void SubtractedME::fillProjectors() {
if ( !inclusive() && !virtualShowerSubtraction() )
return;
Ptr<StdXCombGroup>::tptr group =
dynamic_ptr_cast<Ptr<StdXCombGroup>::tptr>(lastXCombPtr());
for ( vector<StdXCombPtr>::const_iterator d = group->dependent().begin();
d != group->dependent().end(); ++d ) {
- if ( !(**d).kinematicsGenerated() )
+ if ( !(**d).matrixElement()->apply() ||
+ !(**d).kinematicsGenerated() )
continue;
if ( (**d).willPassCuts() )
lastXCombPtr()->projectors().insert(1.,*d);
}
}
double SubtractedME::reweightHead(const vector<tStdXCombPtr>& dep) {
if ( inclusive() && !lastXComb().lastProjector() )
return 1.;
if ( virtualShowerSubtraction() && !lastXComb().lastProjector() ) {
return 0.;
}
if ( realShowerSubtraction() ) {
assert(showerApproximation());
bool below = showerApproximation()->belowCutoff();
bool haveDipole = false;
for ( vector<tStdXCombPtr>::const_iterator d = dep.begin(); d != dep.end(); ++d ) {
- if ( !(**d).kinematicsGenerated() )
+ if ( !(**d).matrixElement()->apply() ||
+ !(**d).kinematicsGenerated() )
continue;
if ( (**d).willPassCuts() ) {
haveDipole = true;
break;
}
}
if ( !haveDipole )
return 1.;
if ( below )
return 0.;
return 1.;
}
if ( virtualShowerSubtraction() || inclusive() ) {
if ( virtualShowerSubtraction() ) {
assert(showerApproximation());
bool above = !showerApproximation()->belowCutoff();
if ( above )
return 0.;
}
double sum = 0.;
size_t n = 0;
for ( vector<tStdXCombPtr>::const_iterator d = dep.begin(); d != dep.end(); ++d ) {
- if ( !(**d).kinematicsGenerated() )
+ if ( !(**d).matrixElement()->apply() ||
+ !(**d).kinematicsGenerated() )
continue;
if ( (**d).willPassCuts() ) {
sum += (**d).lastME2();
++n;
}
}
return
n * lastXComb().lastProjector()->lastME2() / sum;
}
return 1.;
}
double SubtractedME::reweightDependent(tStdXCombPtr xc, const vector<tStdXCombPtr>& dep) {
if ( inclusive() && !lastXComb().lastProjector() )
return 0.;
if ( virtualShowerSubtraction() && !lastXComb().lastProjector() ) {
return 0.;
}
if ( virtualShowerSubtraction() || inclusive() ) {
if ( xc != lastXComb().lastProjector() )
return 0.;
size_t n = 0;
for ( vector<tStdXCombPtr>::const_iterator d = dep.begin(); d != dep.end(); ++d ) {
- if ( !(**d).kinematicsGenerated() )
+ if ( !(**d).matrixElement()->apply() ||
+ !(**d).kinematicsGenerated() )
continue;
if ( (**d).willPassCuts() ) {
++n;
}
}
return n;
}
if ( realShowerSubtraction() ) {
bool haveDipole = false;
for ( vector<tStdXCombPtr>::const_iterator d = dep.begin(); d != dep.end(); ++d ) {
if ( !(**d).kinematicsGenerated() )
continue;
if ( (**d).willPassCuts() ) {
haveDipole = true;
break;
}
}
if ( !haveDipole )
return 0.;
}
return 1.;
}
void SubtractedME::doinit() {
// has been deactivated by the factory
if ( !head() ) {
MEBase::doinit();
return;
}
theReal = dynamic_ptr_cast<Ptr<MatchboxMEBase>::tptr>(head());
if ( theReal ) {
getDipoles();
}
if ( verbose() )
print(Repository::clog());
MEGroup::doinit();
}
void SubtractedME::doinitrun() {
// has been deactivated by the factory
if ( !head() ) {
MEBase::doinitrun();
return;
}
MEGroup::doinitrun();
theReal = dynamic_ptr_cast<Ptr<MatchboxMEBase>::tptr>(head());
}
void SubtractedME::dofinish() {
// has been deactivated by the factory
if ( !head() ) {
MEBase::dofinish();
return;
}
MEGroup::dofinish();
for ( map<CollinearSubtractionIndex,SubtractionHistogram>::
const_iterator b = collinearHistograms.begin();
b != collinearHistograms.end(); ++b ) {
b->second.dump(factory()->subtractionData(),
b->first.first,
b->first.second.first,
b->first.second.second);
}
for ( map<SoftSubtractionIndex,SubtractionHistogram>::
const_iterator b = softHistograms.begin();
b != softHistograms.end(); ++b ) {
b->second.dump(factory()->subtractionData(),
b->first.first,
b->first.second,
b->first.second);
}
}
void SubtractedME::print(ostream& os) const {
os << "--- SubtractedME setup ---------------------------------------------------------\n";
os << " '" << name() << "' subtracting real emission\n '"
<< head()->name() << "' using the dipoles:\n";
for ( MEVector::const_iterator d = dependent().begin();
d != dependent().end(); ++d )
dynamic_ptr_cast<Ptr<SubtractionDipole>::tptr>(*d)->print(os);
os << "--------------------------------------------------------------------------------\n";
os << flush;
}
void SubtractedME::printLastEvent(ostream& os) const {
os << "--- SubtractedME last event information ----------------------------------------\n";
os << " for subtracted matrix element '" << name() << "'\n";
os << " real emission event information:\n";
dynamic_ptr_cast<Ptr<MatchboxMEBase>::tptr>(head())->printLastEvent(os);
os << " dipoles event information:\n";
for ( MEVector::const_iterator d = dependent().begin();
d != dependent().end(); ++d )
dynamic_ptr_cast<Ptr<SubtractionDipole>::tptr>(*d)->printLastEvent(os);
os << "--- end SubtractedME last event information ------------------------------------\n\n\n";
os << flush;
}
void SubtractedME::lastEventStatistics() {
MEGroup::lastEventStatistics();
if ( !generator() )
return;
/*
if ( verbose() )
printLastEvent(generator()->log());
*/
if ( !collinearHistograms.empty() )
lastEventSubtraction();
}
SubtractedME::SubtractionHistogram::
SubtractionHistogram(double low,
double up,
unsigned int nbins)
: lower(low) {
nbins = nbins + 1;
double c = log10(up/low) / (nbins-1.);
for ( unsigned int k = 1; k < nbins; ++k ) {
bins[low*pow(10.0,k*c)] = make_pair(Constants::MaxDouble,0.);
}
}
void SubtractedME::SubtractionHistogram::persistentOutput(PersistentOStream& os) const {
os << lower << bins;
}
void SubtractedME::SubtractionHistogram::persistentInput(PersistentIStream& is) {
is >> lower >> bins;
}
void SubtractedME::SubtractionHistogram::
dump(const std::string& prefix,
const cPDVector& proc,
int i, int j) const {
ostringstream fname("");
for ( cPDVector::const_iterator p = proc.begin();
p != proc.end(); ++p )
fname << (**p).PDGName();
fname << "-" << i << "-" << j;
ofstream out((prefix+fname.str()+".dat").c_str());
for ( map<double,pair<double,double> >::const_iterator b = bins.begin();
b != bins.end(); ++b ) {
map<double,pair<double,double> >::const_iterator bp = b; --bp;
if ( b->second.first != Constants::MaxDouble &&
b->second.second != 0. ) {
if ( b != bins.begin() )
out << bp->first;
else
out << lower;
out << " " << b->first
<< " " << b->second.first
<< " " << b->second.second
<< "\n" << flush;
}
}
ofstream gpout((prefix+fname.str()+".gp").c_str());
gpout << "set terminal epslatex color solid;\n"
<< "set output '" << fname.str() << "-plot.tex';\n"
<< "set log x;\n"
<< "set size 0.5,0.6;\n"
<< "set yrange [0:2];\n"
<< "set xrange [0.001:10];\n";
if ( i != j ) {
gpout << "set xlabel '$\\sqrt{s_{" << i << j << "}}/{\\rm GeV}$'\n";
} else {
gpout << "set xlabel '$E_{" << i << "}/{\\rm GeV}$'\n";
}
gpout << "plot 1 w lines lc rgbcolor \"#DDDDDD\" notitle, '" << fname.str()
<< ".dat' u (($1+$2)/2.):3:($4 < 4. ? $4 : 4.) w filledcurves lc rgbcolor \"#00AACC\" t "
<< "'$";
for ( size_t k = 0; k < proc.size(); k++ ) {
if ( k == 2 )
gpout << "\\to ";
gpout << (proc[k]->id() < 0 ? "\\bar{" : "")
<< (proc[k]->id() < 0 ? proc[k]->CC()->PDGName() : proc[k]->PDGName())
<< (proc[k]->id() < 0 ? "}" : "") << " ";
}
gpout << "$';\n";
gpout << "reset;\n";
}
void SubtractedME::lastEventSubtraction() {
tStdXCombGroupPtr xc = dynamic_ptr_cast<tStdXCombGroupPtr>(lastXCombPtr());
CrossSection xcme2 = xc->lastHeadCrossSection();
CrossSection xcdip = ZERO;
if ( xcme2 == ZERO )
return;
for ( vector<StdXCombPtr>::const_iterator d = xc->dependent().begin();
d != xc->dependent().end(); ++d ) {
if ( !(*d) )
continue;
if ( !(**d).matrixElement()->apply() )
continue;
if ( !(**d).willPassCuts() )
continue;
xcdip += (**d).lastCrossSection();
}
if ( theReal->phasespace() ) {
size_t i = lastSingularLimit()->first;
size_t j = lastSingularLimit()->second;
if ( i == j &&
softHistograms.find(SoftSubtractionIndex(head()->mePartonData(),i))
!= softHistograms.end() ) {
softHistograms[SoftSubtractionIndex(head()->mePartonData(),i)].
book(meMomenta()[i].t()/GeV,abs(xcdip)/abs(xcme2));
}
if ( i != j &&
collinearHistograms.find(CollinearSubtractionIndex(head()->mePartonData(),make_pair(i,j)))
!= collinearHistograms.end() ) {
double s = sqrt(2.*meMomenta()[i]*meMomenta()[j])/GeV;
collinearHistograms[CollinearSubtractionIndex(head()->mePartonData(),make_pair(i,j))].
book(s,abs(xcdip)/abs(xcme2));
}
return;
}
for ( size_t i = 0; i < meMomenta().size(); ++i ) {
if ( i > 1 ) {
if ( softHistograms.find(SoftSubtractionIndex(head()->mePartonData(),i))
!= softHistograms.end() ) {
softHistograms[SoftSubtractionIndex(head()->mePartonData(),i)].
book(meMomenta()[i].t()/GeV,abs(xcdip)/abs(xcme2));
}
}
for ( size_t j = i+1; j < meMomenta().size(); ++j ) {
if ( collinearHistograms.find(CollinearSubtractionIndex(head()->mePartonData(),make_pair(i,j)))
== collinearHistograms.end() )
continue;
double s = sqrt(2.*meMomenta()[i]*meMomenta()[j])/GeV;
collinearHistograms[CollinearSubtractionIndex(head()->mePartonData(),make_pair(i,j))].
book(s,abs(xcdip)/abs(xcme2));
}
}
}
void SubtractedME::persistentOutput(PersistentOStream & os) const {
os << theLastXComb << theFactory << theReal
<< collinearHistograms << softHistograms
<< theRealShowerSubtraction << theVirtualShowerSubtraction;
}
void SubtractedME::persistentInput(PersistentIStream & is, int) {
is >> theLastXComb >> theFactory >> theReal
>> collinearHistograms >> softHistograms
>> theRealShowerSubtraction >> theVirtualShowerSubtraction;
lastMatchboxXComb(theLastXComb);
}
void SubtractedME::Init() {
static ClassDocumentation<SubtractedME> documentation
("SubtractedME represents a subtracted real emission matrix element.");
}
// *** Attention *** The following static variable is needed for the type
// description system in ThePEG. Please check that the template arguments
// are correct (the class and its base class), and that the constructor
// arguments are correct (the class name and the name of the dynamically
// loadable library where the class implementation can be found).
DescribeClass<SubtractedME,MEGroup>
describeHerwigSubtractedME("Herwig::SubtractedME", "HwMatchbox.so");

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