AliGenerator* MbCocktail()
{
comment = comment.Append(" pp at 14 TeV: Pythia low-pt, no heavy quarks + J/Psi from parameterisation");
AliGenCocktail * gener = new AliGenCocktail();
gener->UsePerEventRates();
// Pythia
AliGenPythia* pythia = new AliGenPythia(-1);
pythia->SetMomentumRange(0, 999999.);
pythia->SetThetaRange(0., 180.);
pythia->SetYRange(-12.,12.);
pythia->SetPtRange(0,1000.);
pythia->SetProcess(kPyMb);
pythia->SetEnergyCMS(14000.);
pythia->SwitchHFOff();
// J/Psi parameterisation
AliGenParam* jpsi = new AliGenParam(1, AliGenMUONlib::kJpsi, "CDF scaled", "Jpsi");
jpsi->SetPtRange(0.,100.);
jpsi->SetYRange(-8., 8.);
jpsi->SetPhiRange(0., 360.);
jpsi->SetForceDecay(kAll);
gener->AddGenerator(pythia, "Pythia", 1.);
gener->AddGenerator(jpsi, "J/Psi", 8.e-4);
return gener;
}
AliGenerator* JPsi7TeV()
/*{
AliGenParam *jpsi7TeV = new AliGenParam(1, AliGenMUONlib::kJpsi,"CDF pp 7");
jpsi7TeV->SetMomentumRange(0,999);
jpsi7TeV->SetPtRange(0,20.);
jpsi7TeV->SetYRange(-4.2,-2.3);
jpsi7TeV->SetPhiRange(0., 360.);
jpsi7TeV->SetCutOnChild(1);
jpsi7TeV->SetChildPhiRange(0.,360.);
jpsi7TeV->SetChildThetaRange(0.,180.);
jpsi7TeV->SetForceDecay(kDiMuon);
jpsi7TeV->SetTrackingFlag(1);
return jpsi7TeV;
}*/
{
comment = comment.Append(" pp at 7 TeV: Pythia low-pt, no heavy quarks + J/Psi from parameterisation");
AliGenCocktail * gener = new AliGenCocktail();
gener->UsePerEventRates();
// Pythia
AliGenPythia* pythia = new AliGenPythia(-1);
pythia->SetMomentumRange(0, 999999.);
pythia->SetThetaRange(0., 180.);
pythia->SetYRange(-12.,12.);
pythia->SetPtRange(0,1000.);
pythia->SetProcess(kPyMb);
pythia->SetEnergyCMS(energy);
pythia->SwitchHFOff();
// J/Psi parameterisation
// AliGenParam* jpsi = new AliGenParam(1, AliGenMUONlib::kJpsi, "CDF scaled", "Jpsi");
AliGenParam* jpsi = new AliGenParam(1, AliGenMUONlib::kJpsi,"CDF pp 7");
jpsi->SetPtRange(0.,100.);
// jpsi->SetYRange(-8., 8.);
jpsi->SetYRange(-1.5, 1.5); //this to speed up !!!
jpsi->SetPhiRange(0., 360.);
jpsi->SetForceDecay(kDiElectron); // this has to be changed to force J/psi->e+e-
//gener->AddGenerator(jpsi, "J/Psi", 8.e-4); // expected yield
gener->AddGenerator(jpsi, "J/Psi", 1.); // 1 J/psi per event
gener->AddGenerator(pythia, "Pythia", 1.);
return gener;
}
AliGenerator* MbPythiaTunePerugia0Jpsi()
{
comment = comment.Append("pp Cocktail: Pythia (Perugia0) + 1 Jpsi forced to dielectrons");
//Generating a cocktail
AliGenCocktail *gener = new AliGenCocktail();
gener->UsePerEventRates();
//
// Pythia
AliGenPythia* pythia = new AliGenPythia(-1);
pythia->SetMomentumRange(0, 999999.);
pythia->SetThetaRange(0., 180.);
pythia->SetYRange(-12.,12.);
pythia->SetPtRange(0,1000.);
pythia->SetProcess(kPyMb);
pythia->SetEnergyCMS(energy);
// Tune
// 320 Perugia 0
pythia->SetTune(320);
pythia->UseNewMultipleInteractionsScenario();
//
// JPsi is the second ingredient of the cocktail
//AliGenParam* jpsi = new AliGenParam(1, AliGenMUONlib::kJpsi, "CDF scaled", "Jpsi"); // 14 TeV
AliGenParam* jpsi=0x0;
if(JpsiHarderPt) jpsi = new AliGenParam(1, AliGenMUONlib::kJpsi, "CDF pp 8.8", "Jpsi"); // 8.8 TeV
else jpsi = new AliGenParam(1, AliGenMUONlib::kJpsi, "CDF pp 7", "Jpsi"); // 7 TeV
//AliGenParam* jpsi = new AliGenParam(1, AliGenMUONlib::kJpsi, "CDF pp 7", "Jpsi"); // 7 TeV
//AliGenParam* jpsi = new AliGenParam(1, AliGenMUONlib::kJpsi, "CDF pp 8.8", "Jpsi"); // 8.8 TeV
jpsi->SetPtRange(0.,999.);
jpsi->SetYRange(-1.0, 1.0);
jpsi->SetPhiRange(0.,360.);
//jpsi->SetChildYRange(-0.9,0.9); // decaying electrons should be in TRD acceptance
jpsi->SetForceDecay(kDiElectron);
jpsi->Init();
gener->AddGenerator(pythia, "Pythia", 1.); // 1 is weighting factor : Rate per event
gener->AddGenerator(jpsi,"JPsi",1);
// gener->Init();
return gener;
}
