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| // -*- C++ -*-
#include "Rivet/Analysis.hh"
#include "Rivet/Projections/ChargedFinalState.hh"
#include "Rivet/Tools/Correlators.hh"
#include "Rivet/Tools/AliceCommon.hh"
#include "Rivet/Projections/AliceCommon.hh"
namespace Rivet {
/// @brief Multiparticle azimuthal correlations pp, pPb, XeXe and PbPb.
class ALICE_2019_I1723697 : public CumulantAnalysis {
public:
/// Constructor
ALICE_2019_I1723697() :
CumulantAnalysis("ALICE_2019_I1723697") {}
/// @name Analysis methods
//@{
/// Book histograms and initialise projections before the run
void init() {
// Find system type.
string bOpt = getOption<string>("beam","");
const ParticlePair& beam = beams();
if (beam.first.pid() == PID::PROTON && beam.second.pid() == PID::PROTON)
sysType = pp;
else if (beam.first.pid() == PID::PROTON && beam.second.pid() == PID::LEAD)
sysType = pPb;
else if (beam.first.pid() == PID::XENON && beam.second.pid() == PID::XENON)
sysType = XeXe;
else if (beam.first.pid() == PID::LEAD && beam.second.pid() == PID::LEAD)
sysType = PbPb;
else{
MSG_WARNING("Suspicious beam. You're probably in reentrant mode. Fetching beam type from option.");
if (bOpt == "pp") sysType = pp;
else if (bOpt == "pPb") sysType = pPb;
else if (bOpt == "XeXe") sysType = XeXe;
else if (bOpt == "PbPb") sysType = PbPb;
else MSG_ERROR("Could not decipher beam type. For rivet-merge, set -a ALICE_2019_I1723697:beam=OPT, where opt is pp, pPb, XeXe or PbPb.");
MSG_WARNING("Setting beam type to "+bOpt);
}
// Sanity check
if ((sysType == pp && bOpt != "pp") || (sysType == pPb && bOpt != "pPb") ||
(sysType == XeXe && bOpt != "XeXe") || (sysType == PbPb && bOpt != "PbPb"))
MSG_WARNING("Beam option and registered beam don't match. Are you sure this is intentional?");
// Initialise and register projections
// Declare the trigger projection.
declare<ALICE::V0AndTrigger>(ALICE::V0AndTrigger(),"V0-AND");
// Centrality projection for high multiplicity trigger in pp.
if (sysType == pp)
declareCentrality(ALICE::V0MMultiplicity(),
"ALICE_2015_PPCentrality", "V0M","V0M");
// The full central charged final state.
const ChargedFinalState& cfs = ChargedFinalState(Cuts::abseta < 0.8 &&
Cuts::pT > 0.2*GeV && Cuts::pT < 5.0*GeV);
declare(cfs, "CFS");
// The positive eta side used for rapidity gap = 1.4.
const ChargedFinalState& cfsp14 = ChargedFinalState(Cuts::eta > 0.5 &&
Cuts::eta < 0.8 && Cuts::pT > 0.2*GeV && Cuts::pT < 5.0*GeV);
declare(cfsp14, "CFSP14");
// ..negative ditto.
const ChargedFinalState& cfsn14 = ChargedFinalState(Cuts::eta < -0.5 &&
Cuts::eta > -0.8 && Cuts::pT > 0.2*GeV && Cuts::pT < 5.0*GeV);
declare(cfsn14, "CFSN14");
// The positive eta side used for rapidity gap = 1.0.
const ChargedFinalState& cfsp10 = ChargedFinalState(Cuts::eta > 0.5 &&
Cuts::eta < 0.8 && Cuts::pT > 0.2*GeV && Cuts::pT < 5.0*GeV);
declare(cfsp10, "CFSP10");
// ..negative ditto.
const ChargedFinalState& cfsn10 = ChargedFinalState(Cuts::eta < -0.5 &&
Cuts::eta > -0.8 && Cuts::pT > 0.2*GeV && Cuts::pT < 5.0*GeV);
declare(cfsn10, "CFSN10");
// Book flow coeff scatters before booking the correlators
// to have access to bin edges.
int n1 = 0;
int n2 = 0;
int n3 = 0;
if (sysType == pPb) n1 = 9, n2 = 1;
else if (sysType == XeXe) n1 = 19, n2 = 1, n3 = 0;
else if (sysType == PbPb) n1 = 30, n2 = 1, n3 = 1;
book(h_v22gap, 1 + n1, 1, 1, true);
book(h_v32gap, 2 + n1, 1, 1, true);
book(h_v42gap, 3 + n1, 1, 1, true);
if (sysType != pp)
book(h_v24, 4 + n1, 1, 1, true);
book(h_v26, 5 + n1 + n2, 1, 1, true);
if (sysType == XeXe || sysType == PbPb)
book(h_v28, 6 + n1 + n2 + n3, 1, 1, true);
// Book cumulant scatters.
book(h_c22gap, "c22gap", refData(1 + n1, 1, 1));
book(h_c32gap, "c32gap", refData(2 + n1, 1, 1));
book(h_c42gap, "c42gap", refData(3 + n1, 1, 1));
book(h_c24, "c24", refData(4 + n1, 1, 1));
book(h_c26, "c26", refData(5 + n1 + n2, 1, 1));
if (sysType == XeXe || sysType == PbPb)
book(h_c28, "c28", refData(6 + n1 + n2 + n3, 1, 1));
// Book correlators. First the ungapped ones.
ec22 = bookECorrelator<2,2>("ec22", refData(4 + n1, 1, 1));
ec24 = bookECorrelator<2,4>("ec24", refData(4 + n1, 1, 1));
ec622 = bookECorrelator<2,2>("ec622", refData(5 + n1 + n2, 1, 1));
ec624 = bookECorrelator<2,4>("ec624", refData(5 + n1 + n2, 1, 1));
ec626 = bookECorrelator<2,6>("ec626", refData(5 + n1 + n2, 1, 1));
// And the ones just valid for XeXe and PbPb.
if (sysType == XeXe || sysType == PbPb) {
ec822 = bookECorrelator<2,2>("ec822", refData(6 + n1 + n2 + n3, 1, 1));
ec824 = bookECorrelator<2,4>("ec824", refData(6 + n1 + n2 + n3, 1, 1));
ec826 = bookECorrelator<2,6>("ec826", refData(6 + n1 + n2 + n3, 1, 1));
ec828 = bookECorrelator<2,8>("ec828", refData(6 + n1 + n2 + n3, 1, 1));
}
// ...and the gapped ones.
ec22gap = bookECorrelatorGap<2,2>("ec22gap", refData(1 + n1, 1, 1));
ec32gap = bookECorrelatorGap<3,2>("ec32gap", refData(2 + n1, 1, 1));
ec42gap = bookECorrelatorGap<4,2>("ec42gap", refData(3 + n1, 1, 1));
// Get the max order of booked correlators for the projections.
pair<int, int> max = getMaxValues();
// Declare correlator projections.
declare(Correlators(cfs, max.first, max.second), "Correlators");
declare(Correlators(cfsp14, max.first, max.second), "CorrelatorsPos14");
declare(Correlators(cfsn14, max.first, max.second), "CorrelatorsNeg14");
declare(Correlators(cfsp10, max.first, max.second), "CorrelatorsPos10");
declare(Correlators(cfsn10, max.first, max.second), "CorrelatorsNeg10");
}
/// Perform the per-event analysis
void analyze(const Event& event) {
// Event trigger.
if (!apply<ALICE::V0AndTrigger>(event, "V0-AND")() ) vetoEvent;
// High multiplicity trigger for pp.
if (sysType == pp && apply<CentralityProjection>(event, "V0M")() > 0.1)
vetoEvent;
// Number of charged particles.
const double nch = apply<ChargedFinalState>(event, "CFS").size();
// The correlators projections.
const Correlators& c = applyProjection<Correlators>(event,"Correlators");
const Correlators& cp10 =
applyProjection<Correlators>(event,"CorrelatorsPos10");
const Correlators& cn10 =
applyProjection<Correlators>(event,"CorrelatorsNeg10");
const Correlators& cp14 =
applyProjection<Correlators>(event,"CorrelatorsPos14");
const Correlators& cn14 =
applyProjection<Correlators>(event,"CorrelatorsNeg14");
// Fill correlators.
ec22->fill(nch, c);
ec24->fill(nch, c);
ec622->fill(nch, c);
ec624->fill(nch, c);
ec626->fill(nch, c);
if (sysType == XeXe || sysType == PbPb) {
ec822->fill(nch, c);
ec824->fill(nch, c);
ec826->fill(nch, c);
ec828->fill(nch, c);
}
// Fill gapped correlators.
ec22gap->fill(nch, cp14, cn14);
ec32gap->fill(nch, cp10, cn10);
ec42gap->fill(nch, cp10, cn10);
}
/// Normalise histograms etc., after the run
void finalize() {
// Stream correlators to yoda file.
// Fill cumulant scatters.
cnTwoInt(h_c22gap, ec22gap);
cnTwoInt(h_c32gap, ec32gap);
cnTwoInt(h_c42gap, ec42gap);
cnFourInt(h_c24, ec22, ec24);
cnSixInt(h_c26, ec622, ec624, ec626);
if (sysType == XeXe || sysType == PbPb)
cnEightInt(h_c28, ec822, ec824, ec826, ec828);
// Fill flow scatters.
vnTwoInt(h_v22gap, ec22gap);
vnTwoInt(h_v32gap, ec32gap);
vnTwoInt(h_v42gap, ec42gap);
if (sysType != pp)
vnFourInt(h_v24, ec22, ec24);
vnSixInt(h_v26, ec622, ec624, ec626);
if (sysType == XeXe || sysType == PbPb)
vnEightInt(h_v28, ec822, ec824, ec826, ec828);
}
//@}
// System check enum.
enum SysType {pp, pPb, XeXe, PbPb};
SysType sysType;
/// @name Histograms
//@{
// Flow coefficients.
Scatter2DPtr h_v22gap;
Scatter2DPtr h_v32gap;
Scatter2DPtr h_v42gap;
Scatter2DPtr h_v24;
Scatter2DPtr h_v26;
Scatter2DPtr h_v28;
// Cumulants.
Scatter2DPtr h_c22gap;
Scatter2DPtr h_c32gap;
Scatter2DPtr h_c42gap;
Scatter2DPtr h_c24;
Scatter2DPtr h_c26;
Scatter2DPtr h_c28;
// Correlators.
ECorrPtr ec22;
ECorrPtr ec24;
ECorrPtr ec622;
ECorrPtr ec624;
ECorrPtr ec626;
ECorrPtr ec822;
ECorrPtr ec824;
ECorrPtr ec826;
ECorrPtr ec828;
// Gapped correlators.
ECorrPtr ec22gap;
ECorrPtr ec32gap;
ECorrPtr ec42gap;
//@}
};
// The hook for the plugin system
RIVET_DECLARE_PLUGIN(ALICE_2019_I1723697);
}
|