#include <cmath>
#include <TROOT.h>
#include <TMath.h>
#include <TAxis.h>
#include <TParticlePDG.h>
#include "AliUnicorHN.h"
#include "AliUnicorEvent.h"
#include "AliUnicorAnalSingle.h"
ClassImp(AliUnicorAnalSingle)
AliUnicorAnalSingle::AliUnicorAnalSingle(const char *nam, Double_t emi, Double_t ema, Int_t pid) :
AliUnicorAnal(nam), fPid(pid), fMass(0.0)
{
fPid = pid;
TParticlePDG *part = AliUnicorAnal::fgPDG.GetParticle(fPid);
fMass = part? part->Mass() : 0;
double pi = TMath::Pi();
TAxis *ax[10];
ax[0] = new TAxis(30,-1,1); ax[0]->SetTitle("vertex z");
ax[1] = new TAxis(80,emi,ema); ax[1]->SetTitle("eta");
ax[2] = new TAxis(90,-pi,pi); ax[2]->SetTitle("phi");
AliUnicorHN *zep = new AliUnicorHN("zep",3,ax);
for (int i=0; i<3; i++) delete ax[i];
ax[0] = new TAxis(20,0,1); ax[0]->SetTitle("centrality");
ax[1] = new TAxis(80,emi,ema); ax[1]->SetTitle("y");
ax[2] = new TAxis(80,0,2); ax[2]->SetTitle("pt (GeV)");
AliUnicorHN *cyp = new AliUnicorHN("cyp",3,ax);
for (int i=0; i<3; i++) delete ax[i];
ax[0] = new TAxis(10,emi,ema); ax[0]->SetTitle("eta");
ax[1] = new TAxis(150,0,3); ax[1]->SetTitle("p (GeV)");
ax[2] = new TAxis(150,0.5,3.5);ax[2]->SetTitle("sqrt(dedx (mips))");
AliUnicorHN *epd = new AliUnicorHN("epd",3,ax);
for (int i=0; i<3; i++) delete ax[i];
fHistos.Add(zep);
fHistos.Add(cyp);
fHistos.Add(epd);
gROOT->cd();
}
void AliUnicorAnalSingle::Process(AliUnicorEvent *ev)
{
AliUnicorHN *zep = (AliUnicorHN*) fHistos.At(0);
AliUnicorHN *cyp = (AliUnicorHN*) fHistos.At(1);
AliUnicorHN *epd = (AliUnicorHN*) fHistos.At(2);
for (int i=0; i<ev->NParticles(); i++) {
if (!ev->ParticleGood(i,fPid)) continue;
zep->Fill(ev->Zver(),ev->ParticleEta(i),ev->ParticlePhi(i),1.0);
double y = fMass>0? ev->ParticleY(i,fMass) : ev->ParticleEta(i);
cyp->Fill(ev->Centrality(),y,ev->ParticlePt(i),1.0);
epd->Fill(ev->ParticleEta(i),ev->ParticleP(i),sqrt(ev->ParticleDedx(i)),1.0);
}
}
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