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| // -*- C++ -*-
#include "Rivet/Analysis.hh"
#include "Rivet/Projections/FinalState.hh"
#include "Rivet/Projections/ChargedFinalState.hh"
#include "Rivet/Projections/MissingMomentum.hh"
namespace Rivet {
/// UA1 minbias track multiplicities, \f$ p_\perp \f$ and \f$ E_\perp \f$
class UA1_1990_S2044935 : public Analysis {
public:
/// Constructor
RIVET_DEFAULT_ANALYSIS_CTOR(UA1_1990_S2044935);
/// @name Analysis methods
//@{
/// Book projections and histograms
void init() {
declare(ChargedFinalState((Cuts::etaIn(-5.5, 5.5))), "TriggerFS");
declare(ChargedFinalState((Cuts::etaIn(-2.5, 2.5))), "TrackFS");
const FinalState trkcalofs((Cuts::etaIn(-2.5, 2.5)));
declare(MissingMomentum(trkcalofs), "MET25");
const FinalState calofs((Cuts::etaIn(-6.0, 6.0)));
declare(MissingMomentum(calofs), "MET60");
if (isCompatibleWithSqrtS(63)) {
book(_hist_Pt ,8,1,1);
} else if (isCompatibleWithSqrtS(200)) {
book(_hist_Nch ,1,1,1);
book(_hist_Esigd3p ,2,1,1);
book(_hist_Pt ,6,1,1);
book(_hist_Et ,9,1,1);
book(_hist_Etavg ,12,1,1);
} else if (isCompatibleWithSqrtS(500)) {
book(_hist_Nch ,1,1,2);
book(_hist_Esigd3p ,2,1,2);
book(_hist_Et ,10,1,1);
book(_hist_Etavg ,12,1,2);
} else if (isCompatibleWithSqrtS(900)) {
book(_hist_Nch ,1,1,3);
book(_hist_Esigd3p ,2,1,3);
book(_hist_Pt ,7,1,1);
book(_hist_Et ,11,1,1);
book(_hist_Etavg ,12,1,3);
book(_hist_Esigd3p08 ,3,1,1);
book(_hist_Esigd3p40 ,4,1,1);
book(_hist_Esigd3p80 ,5,1,1);
}
book(_sumwTrig, "TMP/sumwTrig");
// book(_sumwTrig08, "TMP/sumwTrig08");
// book(_sumwTrig40, "TMP/sumwTrig40");
// book(_sumwTrig80, "TMP/sumwTrig80");
}
void analyze(const Event& event) {
// Trigger
const FinalState& trigfs = apply<FinalState>(event, "TriggerFS");
unsigned int n_minus(0), n_plus(0);
for (const Particle& p : trigfs.particles()) {
const double eta = p.eta();
if (inRange(eta, -5.5, -1.5)) n_minus++;
else if (inRange(eta, 1.5, 5.5)) n_plus++;
}
MSG_DEBUG("Trigger -: " << n_minus << ", Trigger +: " << n_plus);
if (n_plus == 0 || n_minus == 0) vetoEvent;
_sumwTrig->fill();
// Use good central detector tracks
const FinalState& cfs = apply<FinalState>(event, "TrackFS");
const double Et25 = apply<MissingMomentum>(event, "MET25").scalarEt();
const double Et60 = apply<MissingMomentum>(event, "MET60").scalarEt();
const unsigned int nch = cfs.size();
// Event level histos
if (!isCompatibleWithSqrtS(63)) {
_hist_Nch->fill(nch);
_hist_Et->fill(Et60/GeV);
_hist_Etavg->fill(nch, Et25/GeV);
}
// Particle/track level histos
const double deta = 2 * 5.0;
const double dphi = TWOPI;
const double dnch_deta = nch/deta;
for (const Particle& p : cfs.particles()) {
const double pt = p.pT();
const double scaled_weight = 1.0/(deta*dphi*pt/GeV);
if (!isCompatibleWithSqrtS(500)) {
_hist_Pt->fill(nch, pt/GeV);
}
if (!isCompatibleWithSqrtS(63)) {
_hist_Esigd3p->fill(pt/GeV, scaled_weight);
}
// Also fill for specific dn/deta ranges at 900 GeV
if (isCompatibleWithSqrtS(900, 1E-3)) {
if (inRange(dnch_deta, 0.8, 4.0)) {
//_sumwTrig08 ->fill();
_hist_Esigd3p08->fill(pt/GeV, scaled_weight);
} else if (inRange(dnch_deta, 4.0, 8.0)) {
//_sumwTrig40 ->fill();
_hist_Esigd3p40->fill(pt/GeV, scaled_weight);
} else {
//MSG_WARNING(dnch_deta);
if (dnch_deta > 8.0) {
//_sumwTrig80 ->fill();
_hist_Esigd3p80->fill(pt/GeV, scaled_weight);
}
}
}
}
}
void finalize() {
if (_sumwTrig->val() <= 0) {
MSG_WARNING("No events passed the trigger!");
return;
}
const double xsec = crossSectionPerEvent();
if (!isCompatibleWithSqrtS(63)) {
scale(_hist_Nch, 2*xsec/millibarn); ///< Factor of 2 for Nch bin widths?
scale(_hist_Esigd3p, xsec/millibarn);
scale(_hist_Et, xsec/millibarn);
}
if (isCompatibleWithSqrtS(900)) {
// NB. Ref data is normalised to a fixed value not reproducible from MC.
const double scale08 = (_hist_Esigd3p08->bin(0).area() > 0) ?
0.933e5/_hist_Esigd3p08->bin(0).height() : 0;
scale(_hist_Esigd3p08, scale08);
const double scale40 = (_hist_Esigd3p40->bin(0).area() > 0) ?
1.369e5/_hist_Esigd3p40->bin(0).height() : 0;
scale(_hist_Esigd3p40, scale40);
const double scale80 = (_hist_Esigd3p80->bin(0).area() > 0) ?
1.657e5/_hist_Esigd3p80->bin(0).height() : 0;
scale(_hist_Esigd3p80, scale80);
}
}
//@}
private:
/// @name Weight counters
//@{
CounterPtr _sumwTrig; //, _sumwTrig08, _sumwTrig40, _sumwTrig80;
//@}
/// @name Histogram collections
//@{
Histo1DPtr _hist_Nch;
Histo1DPtr _hist_Esigd3p;
Histo1DPtr _hist_Esigd3p08;
Histo1DPtr _hist_Esigd3p40;
Histo1DPtr _hist_Esigd3p80;
Profile1DPtr _hist_Pt;
Profile1DPtr _hist_Etavg;
Histo1DPtr _hist_Et;
//@}
};
RIVET_DECLARE_ALIASED_PLUGIN(UA1_1990_S2044935, UA1_1990_I280412);
}
|