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| // -*- C++ -*-
#include "Rivet/Analysis.hh"
#include "Rivet/Projections/Beam.hh"
#include "Rivet/Projections/FinalState.hh"
#include "Rivet/Projections/ChargedFinalState.hh"
#define I_KNOW_THE_INITIAL_QUARKS_PROJECTION_IS_DODGY_BUT_NEED_TO_USE_IT
#include "Rivet/Projections/InitialQuarks.hh"
namespace Rivet {
/// @brief flavour seperate pi,K,p spectra
class DELPHI_1998_I473409 : public Analysis {
public:
/// Constructor
RIVET_DEFAULT_ANALYSIS_CTOR(DELPHI_1998_I473409);
/// @name Analysis methods
//@{
/// Book histograms and initialise projections before the run
void init() {
// Initialise and register projections
declare(Beam(), "Beams");
declare(ChargedFinalState(), "FS");
declare(InitialQuarks(), "IQF");
// Book histograms
book(_h_all_pi, "TMP/h_all_pi",refData( 4,1,1));
book(_h_all_K , "TMP/h_all_K ",refData( 5,1,1));
book(_h_all_p , "TMP/h_all_p ",refData( 6,1,1));
book(_h_all_Kp, "TMP/h_all_Kp",refData( 7,1,1));
book(_d_all , "TMP/d_all ",refData( 4,1,1));
book(_h_bot_pi, "TMP/h_bot_pi",refData( 8,1,1));
book(_h_bot_K , "TMP/h_bot_K ",refData( 9,1,1));
book(_h_bot_p , "TMP/h_bot_p ",refData(10,1,1));
book(_h_bot_Kp, "TMP/h_bot_Kp",refData(11,1,1));
book(_d_bot , "TMP/d_bot ",refData( 8,1,1));
book(_h_lgt_pi, "TMP/h_lgt_pi",refData(12,1,1));
book(_h_lgt_K , "TMP/h_lgt_K ",refData(13,1,1));
book(_h_lgt_p , "TMP/h_lgt_p ",refData(14,1,1));
book(_h_lgt_Kp, "TMP/h_lgt_Kp",refData(15,1,1));
book(_d_lgt , "TMP/d_lgt ",refData(12,1,1));
book(_h_all_ch_p, 16,1,1);
book(_h_all_ch_x, 17,1,1);
book(_h_all_pi_p, 18,1,1);
book(_h_all_pi_x, 19,1,1);
book(_h_all_K_p , 20,1,1);
book(_h_all_k_x , 21,1,1);
book(_h_all_p_p , 22,1,1);
book(_h_all_p_x , 23,1,1);
book(_h_bot_ch_p, 24,1,1);
book(_h_bot_ch_x, 25,1,1);
book(_h_bot_pi_p, 26,1,1);
book(_h_bot_pi_x, 27,1,1);
book(_h_bot_K_p , 28,1,1);
book(_h_bot_k_x , 29,1,1);
book(_h_bot_p_p , 30,1,1);
book(_h_bot_p_x , 31,1,1);
book(_h_lgt_ch_p, 32,1,1);
book(_h_lgt_ch_x, 33,1,1);
book(_h_lgt_pi_p, 34,1,1);
book(_h_lgt_pi_x, 35,1,1);
book(_h_lgt_K_p , 36,1,1);
book(_h_lgt_k_x , 37,1,1);
book(_h_lgt_p_p , 38,1,1);
book(_h_lgt_p_x , 39,1,1);
for(unsigned int ix=0;ix<3;++ix) {
for(unsigned int iy=0;iy<5;++iy) {
std::ostringstream title;
title << "/TMP/MULT_" << ix << "_" << iy;
book(_mult[ix][iy],title.str());
}
}
book(_wLgt,"TMP/wLgt");
book(_wBot,"TMP/wBot");
book(_wAll,"TMP/wAll");
}
/// Perform the per-event analysis
void analyze(const Event& event) {
// First, veto on leptonic events by requiring at least 4 charged FS particles
const FinalState& fs = apply<ChargedFinalState>(event, "FS");
const size_t numParticles = fs.particles().size();
// Even if we only generate hadronic events, we still need a cut on numCharged >= 2.
if (numParticles < 2) {
MSG_DEBUG("Failed leptonic event cut");
vetoEvent;
}
MSG_DEBUG("Passed leptonic event cut");
int flavour = 0;
const InitialQuarks& iqf = apply<InitialQuarks>(event, "IQF");
// If we only have two quarks (qqbar), just take the flavour.
// If we have more than two quarks, look for the highest energetic q-qbar pair.
if (iqf.particles().size() == 2) {
flavour = iqf.particles().front().abspid();
}
else {
map<int, double> quarkmap;
for (const Particle& p : iqf.particles()) {
if (quarkmap[p.pid()] < p.E()) {
quarkmap[p.pid()] = p.E();
}
}
double maxenergy = 0.;
for (int i = 1; i <= 5; ++i) {
if (quarkmap[i]+quarkmap[-i] > maxenergy) {
flavour = i;
}
}
}
// Get event weight for histo filling
_wAll->fill();
if(flavour<=3) _wLgt->fill();
else if(flavour==5) _wBot->fill();
// Get beams and average beam momentum
const ParticlePair& beams = apply<Beam>(event, "Beams").beams();
const double meanBeamMom = ( beams.first.p3().mod() +
beams.second.p3().mod() ) / 2.0;
MSG_DEBUG("Avg beam momentum = " << meanBeamMom);
// loop over the charged particles
for (const Particle& p : fs.particles()) {
double modp = p.p3().mod();
double xp = modp/meanBeamMom;
int id = abs(p.pid());
_d_all->fill(modp);
_mult[0][0]->fill();
_h_all_ch_p->fill(modp);
_h_all_ch_x->fill(xp );
if(flavour<=3) {
_d_lgt->fill(modp);
_mult[2][0]->fill();
_h_lgt_ch_p->fill(modp);
_h_lgt_ch_x->fill(xp );
}
else if(flavour==5) {
_d_bot ->fill(modp);
_mult[1][0]->fill();
_h_bot_ch_p->fill(modp);
_h_bot_ch_x->fill(xp );
}
if(id==211) {
_h_all_pi ->fill(modp);
_mult[0][1]->fill();
_h_all_pi_p->fill(modp);
_h_all_pi_x->fill(xp );
if(flavour<=3) {
_h_lgt_pi ->fill(modp);
_mult[2][1]->fill();
_h_lgt_pi_p->fill(modp);
_h_lgt_pi_x->fill(xp );
}
else if(flavour==5) {
_h_bot_pi ->fill(modp);
_mult[1][1]->fill();
_h_bot_pi_p->fill(modp);
_h_bot_pi_x->fill(xp );
}
}
else if(id==321) {
_h_all_K ->fill(modp);
_h_all_Kp->fill(modp);
_mult[0][2]->fill();
_mult[0][4]->fill();
_h_all_K_p ->fill(modp);
_h_all_k_x ->fill(xp );
if(flavour<=3) {
_h_lgt_K->fill(modp);
_h_lgt_Kp->fill(modp);
_mult[2][2]->fill();
_mult[2][4]->fill();
_h_lgt_K_p ->fill(modp);
_h_lgt_k_x ->fill(xp );
}
else if(flavour==5) {
_h_bot_K ->fill(modp);
_h_bot_Kp->fill(modp);
_mult[1][2]->fill();
_mult[1][4]->fill();
_h_bot_K_p ->fill(modp);
_h_bot_k_x ->fill(xp );
}
}
else if(id==2212) {
_h_all_p ->fill(modp);
_h_all_Kp->fill(modp);
_mult[0][3]->fill();
_mult[0][4]->fill();
_h_all_p_p ->fill(modp);
_h_all_p_x ->fill(xp );
if(flavour<=3) {
_h_lgt_p ->fill(modp);
_h_lgt_Kp->fill(modp);
_mult[2][3]->fill();
_mult[2][4]->fill();
_h_lgt_p_p ->fill(modp);
_h_lgt_p_x ->fill(xp );
}
else if(flavour==5) {
_h_bot_p ->fill(modp);
_h_bot_Kp->fill(modp);
_mult[1][3]->fill();
_mult[1][4]->fill();
_h_bot_p_p ->fill(modp);
_h_bot_p_x ->fill(xp );
}
}
}
}
/// Normalise histograms etc., after the run
void finalize() {
// // Book histograms
scale(_h_all_pi,100.);
scale(_h_all_K ,100.);
scale(_h_all_p ,100.);
scale(_h_all_Kp,100.);
Scatter2DPtr temp;
book(temp,4,1,1);
divide(_h_all_pi, _d_all, temp);
book(temp,5,1,1);
divide(_h_all_K , _d_all, temp);
book(temp,6,1,1);
divide(_h_all_p , _d_all, temp);
book(temp,7,1,1);
divide(_h_all_Kp, _d_all, temp);
scale(_h_bot_pi,100.);
scale(_h_bot_K ,100.);
scale(_h_bot_p ,100.);
scale(_h_bot_Kp,100.);
book(temp, 8,1,1);
divide(_h_bot_pi, _d_bot, temp);
book(temp, 9,1,1);
divide(_h_bot_K , _d_bot, temp);
book(temp,10,1,1);
divide(_h_bot_p , _d_bot, temp);
book(temp,11,1,1);
divide(_h_bot_Kp, _d_bot, temp);
scale(_h_lgt_pi,100.);
scale(_h_lgt_K ,100.);
scale(_h_lgt_p ,100.);
scale(_h_lgt_Kp,100.);
book(temp,12,1,1);
divide(_h_lgt_pi, _d_lgt, temp);
book(temp,13,1,1);
divide(_h_lgt_K , _d_lgt, temp);
book(temp,14,1,1);
divide(_h_lgt_p , _d_lgt, temp);
book(temp,15,1,1);
divide(_h_lgt_Kp, _d_lgt, temp);
scale(_h_all_ch_p, 1./ *_wAll);
scale(_h_all_ch_x, 1./ *_wAll);
scale(_h_all_pi_p, 1./ *_wAll);
scale(_h_all_pi_x, 1./ *_wAll);
scale(_h_all_K_p , 1./ *_wAll);
scale(_h_all_k_x , 1./ *_wAll);
scale(_h_all_p_p , 1./ *_wAll);
scale(_h_all_p_x , 1./ *_wAll);
scale(_h_bot_ch_p, 1./ *_wBot);
scale(_h_bot_ch_x, 1./ *_wBot);
scale(_h_bot_pi_p, 1./ *_wBot);
scale(_h_bot_pi_x, 1./ *_wBot);
scale(_h_bot_K_p , 1./ *_wBot);
scale(_h_bot_k_x , 1./ *_wBot);
scale(_h_bot_p_p , 1./ *_wBot);
scale(_h_bot_p_x , 1./ *_wBot);
scale(_h_lgt_ch_p, 1./ *_wLgt);
scale(_h_lgt_ch_x, 1./ *_wLgt);
scale(_h_lgt_pi_p, 1./ *_wLgt);
scale(_h_lgt_pi_x, 1./ *_wLgt);
scale(_h_lgt_K_p , 1./ *_wLgt);
scale(_h_lgt_k_x , 1./ *_wLgt);
scale(_h_lgt_p_p , 1./ *_wLgt);
scale(_h_lgt_p_x , 1./ *_wLgt);
// multiplicities
vector<CounterPtr> scales = {_wAll,_wBot,_wLgt};
for(unsigned int ix=0;ix<3;++ix) {
if(scales[ix]->effNumEntries()<=0.) continue;
for(unsigned int iy=0;iy<5;++iy) {
Scatter2DPtr scatter;
book(scatter, ix+1, 1, iy+1, true);
scale(_mult[ix][iy],1./ *scales[ix]);
scatter->point(0).setY(_mult[ix][iy]->val(),_mult[ix][iy]->err());
}
}
}
//@}
/// @name Histograms
//@{
Histo1DPtr _h_all_pi , _h_all_K , _h_all_p , _h_all_Kp , _d_all;
Histo1DPtr _h_bot_pi , _h_bot_K , _h_bot_p , _h_bot_Kp , _d_bot;
Histo1DPtr _h_lgt_pi , _h_lgt_K , _h_lgt_p , _h_lgt_Kp , _d_lgt;
Histo1DPtr _h_all_ch_p, _h_all_ch_x , _h_all_pi_p , _h_all_pi_x ;
Histo1DPtr _h_all_K_p , _h_all_k_x , _h_all_p_p , _h_all_p_x ;
Histo1DPtr _h_bot_ch_p , _h_bot_ch_x , _h_bot_pi_p , _h_bot_pi_x;
Histo1DPtr _h_bot_K_p , _h_bot_k_x , _h_bot_p_p , _h_bot_p_x ;
Histo1DPtr _h_lgt_ch_p , _h_lgt_ch_x , _h_lgt_pi_p , _h_lgt_pi_x;
Histo1DPtr _h_lgt_K_p , _h_lgt_k_x , _h_lgt_p_p , _h_lgt_p_x ;
CounterPtr _mult[3][5];
CounterPtr _wLgt, _wBot, _wAll;
//@}
};
// The hook for the plugin system
RIVET_DECLARE_PLUGIN(DELPHI_1998_I473409);
}
|