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diff --git a/analyses/pluginALICE/ALICE_2016_I1471838.cc b/analyses/pluginALICE/ALICE_2016_I1471838.cc
--- a/analyses/pluginALICE/ALICE_2016_I1471838.cc
+++ b/analyses/pluginALICE/ALICE_2016_I1471838.cc
@@ -1,195 +1,196 @@
// -*- C++ -*-
#include "Rivet/Analysis.hh"
+#include "Rivet/Projections/ChargedFinalState.hh"
#include "Rivet/Projections/CentralityProjection.hh"
#include "Rivet/Projections/AliceCommon.hh"
#include "Rivet/Tools/AliceCommon.hh"
namespace Rivet {
- /// @brief Strangeness enhancement in pp 7 TeV
+ /// @brief Strangeness enhancement in pp 7 TeV by ALICE.
class ALICE_2016_I1471838 : public Analysis {
public:
/// Constructor
DEFAULT_RIVET_ANALYSIS_CTOR(ALICE_2016_I1471838);
int profileIndex(vector<double> cBins, double c) {
int index = 100;
if (c > 0 && c <= cBins[0]) return cBins.size() - 1;
for (size_t i = 0; i < cBins.size() - 1; ++i) {
if (c > cBins[i] && c <= cBins[i + 1]) {
index = i;
break;
}
}
return max(0, int(cBins.size() - index - 2));
}
/// Book histograms and initialise projections before the run
void init() {
// Centrality projection.
declareCentrality(ALICE::V0MMultiplicity(),
"ALICE_2015_PPCentrality","V0M","V0M");
// Central primary particles
- declare(ALICE::PrimaryParticles(Cuts::abseta < 0.5),"PP");
+ declare(ChargedFinalState(Cuts::abseta < 1.0),"PP");
declare(ALICE::PrimaryParticles(Cuts::absrap < 0.5),"PPy");
centralityBins = {1.,5.,10.,15.,20., 30., 40., 50., 70., 100.};
centralityBinsOmega = {5.,15.,30.,50.,100.};
// Book histograms
for (int i = 0; i < 10; ++i) {
K0SpT[centralityBins[9-i]] = bookHisto1D(i+1,1,1);
LambdapT[centralityBins[9-i]] = bookHisto1D(i+11,1,1);
XipT[centralityBins[9-i]] = bookHisto1D(i+21,1,1);
sow[centralityBins[9-i]] = bookCounter("sow_" + toString(i));
}
for (int i = 0; i < 5; ++i) {
OmegapT[centralityBinsOmega[4-i]] = bookHisto1D(i+31,1,1);
sowOmega[centralityBinsOmega[4-i]] = bookCounter("sowO_" + toString(i));
}
piYield = bookProfile1D(40,1,1);
pYield = bookProfile1D(41,1,1);
kYield = bookProfile1D(42,1,1);
lambdaYield = bookProfile1D(43,1,1);
xiYield = bookProfile1D(44,1,1);
omegaYield = bookProfile1D(45,1,1);
piRebinned = shared_ptr<YODA::Profile1D>(omegaYield->newclone());
piRebinned->setTitle("piRebinned");
piRebinned->setPath("/" + name() + "/piRebinned");
addAnalysisObject(piRebinned);
}
/// Perform the per-event analysis
void analyze(const Event& event) {
- if (apply<ALICE::PrimaryParticles>(event,"PP").particles().size() < 1) vetoEvent;
+ if (apply<ChargedFinalState>(event,"PP").particles().size() < 1) vetoEvent;
const ALICE::PrimaryParticles& prim = apply<ALICE::PrimaryParticles>(event,"PPy");
const double weight = event.weight();
const CentralityProjection& cent = apply<CentralityProjection>(event,"V0M");
double c = cent();
// Find the correct histograms
auto kptItr = K0SpT.upper_bound(c);
if (kptItr == K0SpT.end()) return;
auto lptItr = LambdapT.upper_bound(c);
if (lptItr == LambdapT.end()) return;
auto xptItr = XipT.upper_bound(c);
if (xptItr == XipT.end()) return;
auto optItr = OmegapT.upper_bound(c);
if (optItr == OmegapT.end()) return;
// Fill the sow.
auto sowItr = sow.upper_bound(c);
if (sowItr == sow.end()) return;
auto sowOmegaItr = sowOmega.upper_bound(c);
if (sowOmegaItr == sowOmega.end()) return;
sowItr->second->fill(weight);
sowOmegaItr->second->fill(weight);
// Fill the pt histograms and count yields.
int npi = 0, npr = 0, nk = 0;
int nla = 0, nxi = 0, nom = 0;
for (auto p : prim.particles()) {
const double pT = p.pT();
const int pid = abs(p.pid());
if (pid == 211) ++npi;
else if (pid == 2212) ++npr;
else if (pid == 310) {
kptItr->second->fill(pT, weight);
++nk;
}
else if (pid == 3122) {
lptItr->second->fill(pT, weight);
++nla;
}
else if (pid == 3312) {
xptItr->second->fill(pT, weight);
++nxi;
}
else if (pid == 3334) {
optItr->second->fill(pT, weight);
++nom;
}
}
// Fill the profiles of yields.
int index = profileIndex(centralityBins,c);
piYield->fillBin(index, double(npi), weight);
pYield->fillBin(index, double(npr), weight);
kYield->fillBin(index, double(nk), weight);
lambdaYield->fillBin(index, double(nla), weight);
xiYield->fillBin(index, double(nxi), weight);
index = profileIndex(centralityBinsOmega, c);
omegaYield->fillBin(index, double(nom), weight);
piRebinned->fillBin(index,double(npi),weight);
}
/// Normalise histograms etc., after the run
void finalize() {
// Normalize the spectra
for (int i = 0; i < 10; ++i) {
K0SpT[centralityBins[i]]->scaleW(1./sow[centralityBins[i]]->sumW());
XipT[centralityBins[i]]->scaleW(1./sow[centralityBins[i]]->sumW());
LambdapT[centralityBins[i]]->scaleW(1./sow[centralityBins[i]]->sumW());
}
for (int i = 0; i < 5; ++i) {
- OmegapT[centralityBinsOmega[i]]->scaleW(1./sow[centralityBinsOmega[i]]->sumW());
+ OmegapT[centralityBinsOmega[i]]->scaleW(1./sowOmega[centralityBinsOmega[i]]->sumW());
}
// Make the ratios
kpi = bookScatter2D(36, 1, 1, true);
ppi = bookScatter2D(47, 1, 1, true);
lpi = bookScatter2D(37, 1, 1, true);
xpi = bookScatter2D(38, 1, 1, true);
opi = bookScatter2D(39, 1, 1, true);
lk = bookScatter2D(46, 1, 1, true);
divide(kYield, piYield, kpi);
kpi->scaleY(2.);
divide(pYield, piYield, ppi);
divide(lambdaYield, piYield, lpi);
divide(xiYield, piYield, xpi);
divide(omegaYield, piRebinned, opi);
divide(lambdaYield, kYield, lk);
lk->scaleY(0.5);
}
//@}
/// @name Histograms
//@{
// Histograms ordered in centrality classes
vector<double> centralityBins;
vector<double> centralityBinsOmega;
// pT spectra
map<double, Histo1DPtr> K0SpT;
map<double, Histo1DPtr> LambdapT;
map<double, Histo1DPtr> XipT;
map<double, Histo1DPtr> OmegapT;
map<double, CounterPtr> sow;
map<double, CounterPtr> sowOmega;
// Total yields
Profile1DPtr piYield;
Profile1DPtr pYield;
Profile1DPtr kYield;
Profile1DPtr lambdaYield;
Profile1DPtr xiYield;
Profile1DPtr omegaYield;
Profile1DPtr piRebinned;
// Ratios
Scatter2DPtr kpi;
Scatter2DPtr ppi;
Scatter2DPtr lpi;
Scatter2DPtr xpi;
Scatter2DPtr opi;
Scatter2DPtr lk;
//@}
};
// The hook for the plugin system
DECLARE_RIVET_PLUGIN(ALICE_2016_I1471838);
}
diff --git a/analyses/pluginALICE/ALICE_2016_I1471838.info b/analyses/pluginALICE/ALICE_2016_I1471838.info
--- a/analyses/pluginALICE/ALICE_2016_I1471838.info
+++ b/analyses/pluginALICE/ALICE_2016_I1471838.info
@@ -1,46 +1,47 @@
Name: ALICE_2016_I1471838
Year: 2016
Summary: Enhanced production of multi-strange hadrons in high-multiplicity proton-proton collisions.
Experiment: ALICE
Collider: LHC
InspireID: 1471838
Status: UNVALIDATED
Authors:
- Christian Bierlich <christian.bierlich@thep.lu.se>
References:
- Nature.Phys.13(2017)535-539
- arXiv:1606.07424
RunInfo: Minimum bias pp
NeedCrossSection: no
Beams: [p+, p+]
Energies: [7000]
Options:
- cent=REF,GEN,IMP,USR
Reentrant: True
Description:
'Measurements of pT spectra and yields of (multi)strange hadrons, as well as
protons and pions (yields only) in forward multiplicity classes at 7 TeV.
Ratios of yields to pion yields are constructed. The analysis takes care
of particle reconstruction as the experiment does, so no finite lifetime
- should be imposed on generator level.'
+ should be imposed on generator level. Experimental results are scaled to
+ inelastic cross section, and generator setup should be adjusted accordingly.'
Keywords: [QCD, Minimum bias, collectivity, small systems]
BibKey: ALICE:2017jyt
BibTeX: '@article{ALICE:2017jyt,
author = "Adam, Jaroslav and others",
title = "{Enhanced production of multi-strange hadrons in
high-multiplicity proton-proton collisions}",
collaboration = "ALICE",
journal = "Nature Phys.",
volume = "13",
year = "2017",
pages = "535-539",
doi = "10.1038/nphys4111",
eprint = "1606.07424",
archivePrefix = "arXiv",
primaryClass = "nucl-ex",
reportNumber = "CERN-EP-2016-153",
SLACcitation = "%%CITATION = ARXIV:1606.07424;%%"
}'
ToDo:
- Implement the analysis, test it, remove this ToDo, and mark as VALIDATED :-)

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