-
-/**************************************************************************
- * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
- * *
- * Author: The ALICE Off-line Project. *
- * Contributors are mentioned in the code where appropriate. *
- * *
- * Permission to use, copy, modify and distribute this software and its *
- * documentation strictly for non-commercial purposes is hereby granted *
- * without fee, provided that the above copyright notice appears in all *
- * copies and that both the copyright notice and this permission notice *
- * appear in the supporting documentation. The authors make no claims *
- * about the suitability of this software for any purpose. It is *
- * provided "as is" without express or implied warranty. *
- **************************************************************************/
-
-/* $Id$ */
-#include <TString.h>
-#include <TVector3.h>
-#include <TMath.h>
-
-#include "AliPythia8.h"
-#include "AliLog.h"
-#include "AliStack.h"
-#include "AliPythiaRndm.h"
-
-
-ClassImp(AliPythia8)
-
-// Particles produced in string fragmentation point directly to either of the two endpoints
-// of the string (depending in the side they were generated from).
-// SetMSTU(16,2); // ????
-// String drawing almost completely minimizes string length.
-// Probability that an additional interaction gives two gluons
-// ... with color connection to nearest neighbours
-// SetPARP(85,0.9);
-// ... as closed gluon loop
-// SetPARP(86,0.95);
-// Lambda_FSR scale.
-// SetPARJ(81, 0.29);
-// Baryon production model
-// SetMSTJ(12,3);
-// String fragmentation
-// SetMSTJ(1,1);
-// sea quarks can be used for baryon formation
-// SetMSTP(88,2);
-// choice of max. virtuality for ISR
-// SetMSTP(68,1);
-// regularisation scheme of ISR
-// SetMSTP(70,2);
-// all resonance decays switched on
-// SetMSTP(41,1);
-AliPythia8* AliPythia8::fgAliPythia8=NULL;
-
-AliPythia8::AliPythia8():
- TPythia8(),
- AliPythiaBase(),
- fProcess(kPyMb),
- fEcms(0.),
- fStrucFunc(kCTEQ5L),
- fEtSeed(0.),
- fMinEtJet(0.),
- fRJet(0.),
- fYScale(0.),
- fPtScale(0.),
- fNJetMin(0),
- fNJetMax(0)
-{
-// Default Constructor
-//
-// Set random number
- if (!AliPythiaRndm::GetPythiaRandom())
- AliPythiaRndm::SetPythiaRandom(GetRandom());
-}
-
-AliPythia8::AliPythia8(const AliPythia8& pythia):
- TPythia8(),
- AliPythiaBase(),
- fProcess(kPyMb),
- fEcms(0.),
- fStrucFunc(kCTEQ5L),
- fEtSeed(0.),
- fMinEtJet(0.),
- fRJet(0.),
- fYScale(0.),
- fPtScale(0.),
- fNJetMin(0),
- fNJetMax(0)
-{
- // Copy Constructor
- pythia.Copy(*this);
-}
-
-void AliPythia8::ProcInit(Process_t process, Float_t energy, StrucFunc_t strucfunc)
-{
-// Initialise the process to generate
- if (!AliPythiaRndm::GetPythiaRandom())
- AliPythiaRndm::SetPythiaRandom(GetRandom());
-
- fProcess = process;
- fEcms = energy;
- fStrucFunc = strucfunc;
-//...Switch off decay of pi0, K0S, Lambda, Sigma+-, Xi0-, Omega-.
- ReadString("111:mayDecay = off");
- ReadString("310:mayDecay = off");
- ReadString("3122:mayDecay = off");
- ReadString("3112:mayDecay = off");
- ReadString("3212:mayDecay = off");
- ReadString("3222:mayDecay = off");
- ReadString("3312:mayDecay = off");
- ReadString("3322:mayDecay = off");
- ReadString("3334:mayDecay = off");
- // Select structure function
-
- ReadString("PDF:useLHAPDF = on");
- ReadString(Form("PDF:LHAPDFset = %s", AliStructFuncType::PDFsetName(fStrucFunc).Data()));
-
- // Particles produced in string fragmentation point directly to either of the two endpoints
- // of the string (depending in the side they were generated from).
-
-// SetMSTU(16,2); // ????
-
-//
-// Pythia initialisation for selected processes//
-//
- switch (process)
- {
- case kPyOldUEQ2ordered: //Old underlying events with Q2 ordered QCD processes
-// Multiple interactions on.
- ReadString("PartonLevel:MI = on");
-// Double Gaussian matter distribution.
- ReadString("MultipleInteractions:bProfile = 2");
- ReadString("MultipleInteractions:coreFraction = 0.5");
- ReadString("MultipleInteractions:coreRadius = 0.4");
-// pT0.
- ReadString("MultipleInteractions:pTmin = 2.0");
-// Reference energy for pT0 and energy rescaling pace.
- ReadString("MultipleInteractions:ecmRef = 1800.");
- ReadString("MultipleInteractions:ecmPow = 0.25");
-// String drawing almost completely minimizes string length.
-// SetPARP(85,0.9);
-// SetPARP(86,0.95);
-// ISR and FSR activity.
-// Q^2 scale of the hard scattering
- ReadString("SigmaProcess:factorMultFac = 4.");
-// Lambda_FSR scale.
-// SetPARJ(81, 0.29);
- break;
- case kPyOldUEQ2ordered2:
-// Old underlying events with Q2 ordered QCD processes
-// Multiple interactions on.
- ReadString("PartonLevel:MI = on");
-// Double Gaussian matter distribution.
- ReadString("MultipleInteractions:bProfile = 2");
- ReadString("MultipleInteractions:coreFraction = 0.5");
- ReadString("MultipleInteractions:coreRadius = 0.4");
-// pT0.
- ReadString("MultipleInteractions:pTmin = 2.0");
-// Reference energy for pT0 and energy rescaling pace.
- ReadString("MultipleInteractions:ecmRef = 1800.");
- ReadString("MultipleInteractions:ecmPow = 0.16");
-// String drawing almost completely minimizes string length.
-// SetPARP(85,0.9);
-// SetPARP(86,0.95);
-// ISR and FSR activity.
- ReadString("SigmaProcess:factorMultFac = 4.");
-// Lambda_FSR scale.
-// SetPARJ(81,0.29);
- break;
- case kPyOldPopcorn:
-// Old production mechanism: Old Popcorn
- ReadString("HardQCD:all = on");
-// SetMSTJ(12,3);
-// (D=2) Like MSTJ(12)=2 but added prod ofthe 1er rank baryon
-// SetMSTP(88,2);
-// (D=1)see can be used to form baryons (BARYON JUNCTION)
-// SetMSTJ(1,1);
- AtlasTuning();
- break;
- case kPyCharm:
- ReadString("HardQCD:gg2ccbar = on");
- ReadString("HardQCD:qqbar2ccbar = on");
-// heavy quark masses
- ReadString("ParticleData:mcRun = 1.2");
-//
-// primordial pT
- ReadString("Beams:primordialKT = on");
- ReadString("Beams:primordialKTsoft = 0.");
- ReadString("Beams:primordialKThard = 1.");
- ReadString("Beams:halfScaleForKT = 0.");
- ReadString("Beams:halfMassForKT = 0.");
- break;
- case kPyBeauty:
- ReadString("HardQCD:gg2bbbar = on");
- ReadString("HardQCD:qqbar2bbbar = on");
- ReadString("ParticleData:mbRun = 4.75");
- break;
- case kPyJpsi:
-// gg->J/Psi g
- ReadString("Charmonium:gg2QQbar[3S1(1)]g = on");
- break;
- case kPyJpsiChi:
- ReadString("Charmonium:all = on");
- break;
- case kPyCharmUnforced:
-// gq->qg
- ReadString("HardQCD:gq2qg = on");
-// gg->qq
- ReadString("HardQCD:gg2qq = on");
-// gg->gg
- ReadString("HardQCD:gg2gg = on");
- break;
- case kPyBeautyUnforced:
-// gq->qg
- ReadString("HardQCD:gq2qg = on");
-// gg->qq
- ReadString("HardQCD:gg2qq = on");
-// gg->gg
- ReadString("HardQCD:gg2gg = on");
- break;
- case kPyMb:
-// Minimum Bias pp-Collisions
-//
-//
-// select Pythia min. bias model
-// single diffraction AB-->XB
- ReadString("SoftQCD:minBias = on");
- ReadString("SoftQCD:singleDiffractive = on");
- ReadString("SoftQCD:doubleDiffractive = on");
- AtlasTuning();
- break;
- case kPyMbDefault:
-// Minimum Bias pp-Collisions
-//
-//
-// select Pythia min. bias model
- ReadString("SoftQCD:minBias = on");
- ReadString("SoftQCD:singleDiffractive = on");
- ReadString("SoftQCD:doubleDiffractive = on");
- break;
- case kPyLhwgMb:
-// Les Houches Working Group 05 Minimum Bias pp-Collisions: hep-ph/0604120
-// -> Pythia 6.3 or above is needed
-//
- ReadString("SoftQCD:minBias = on");
- ReadString("SoftQCD:singleDiffractive = on");
- ReadString("SoftQCD:doubleDiffractive = on");
- ReadString(Form("PDF:LHAPDFset = %s", AliStructFuncType::PDFsetName(kCTEQ6ll).Data()));
-
-// SetMSTP(68,1);
-// SetMSTP(70,2);
-// ReadString("PartonLevel:MI = on");
-// Double Gaussian matter distribution.
- ReadString("MultipleInteractions:bProfile = 2");
- ReadString("MultipleInteractions:coreFraction = 0.5");
- ReadString("MultipleInteractions:coreRadius = 0.5");
- ReadString("MultipleInteractions:expPow = 0.16");
- ReadString("MultipleInteractions:pTmin = 2.3");
-// SetMSTP(88,1);
-// SetPARP(85,0.9); // Regulates gluon prod. mechanism
- break;
- case kPyMbNonDiffr:
-// Minimum Bias pp-Collisions
-//
-//
-// select Pythia min. bias model
- ReadString("SoftQCD:minBias = on");
- AtlasTuning();
- break;
- case kPyMbMSEL1:
- ConfigHeavyFlavor();
-// Intrinsic <kT^2>
- ReadString("Beams:primordialKT = on");
- ReadString("Beams:primordialKTsoft = 0.");
- ReadString("Beams:primordialKThard = 1.");
- ReadString("Beams:halfScaleForKT = 0.");
- ReadString("Beams:halfMassForKT = 0.");
-// Set Q-quark mass
- ReadString("ParticleData:mcRun = 1.20");
- ReadString("ParticleData:mbRun = 4.78");
-// Atlas Tuning
- AtlasTuning();
- break;
- case kPyJets:
-//
-// QCD Jets
-//
- ReadString("HardQCD:all = on");
-//
-// Pythia Tune A (CDF)
-//
- ReadString("PartonLevel:MI = on");
- ReadString("MultipleInteractions:pTmin = 2.0");
- ReadString("MultipleInteractions:pT0Ref = 2.8");
- ReadString("MultipleInteractions:ecmRef = 1800.");
- ReadString("MultipleInteractions:expPow = 0.25");
- ReadString("MultipleInteractions:bProfile = 2");
- ReadString("MultipleInteractions:coreFraction = 0.16");
- ReadString("MultipleInteractions:coreRadius = 0.4");
- ReadString("SigmaProcess:factorMultFac = 2.5");
-// SetPARP(85,0.90) ; // Regulates gluon prod. mechanism
-// SetPARP(86,0.95); // Regulates gluon prod. mechanism
- break;
- case kPyDirectGamma:
- ReadString("PromptPhoton:all = on");
- break;
- case kPyCharmPbPbMNR:
- case kPyD0PbPbMNR:
- case kPyDPlusPbPbMNR:
- case kPyDPlusStrangePbPbMNR:
- // Tuning of Pythia parameters aimed to get a resonable agreement
- // between with the NLO calculation by Mangano, Nason, Ridolfi for the
- // c-cbar single inclusive and double differential distributions.
- // This parameter settings are meant to work with Pb-Pb collisions
- // (AliGenPythia::SetNuclei) and with kCTEQ4L PDFs.
- // To get a good agreement the minimum ptHard (AliGenPythia::SetPtHard)
- // has to be set to 2.1GeV. Example in ConfigCharmPPR.C.
- ConfigHeavyFlavor();
- // Intrinsic <kT>
- ReadString("Beams:primordialKT = on");
- ReadString("Beams:primordialKTsoft = 0.");
- ReadString("Beams:primordialKThard = 1.304");
- ReadString("Beams:halfScaleForKT = 0.");
- ReadString("Beams:halfMassForKT = 0.");
- // Set c-quark mass
- ReadString("ParticleData:mcRun = 1.20");
- break;
- case kPyCharmpPbMNR:
- case kPyD0pPbMNR:
- case kPyDPluspPbMNR:
- case kPyDPlusStrangepPbMNR:
- // Tuning of Pythia parameters aimed to get a resonable agreement
- // between with the NLO calculation by Mangano, Nason, Ridolfi for the
- // c-cbar single inclusive and double differential distributions.
- // This parameter settings are meant to work with p-Pb collisions
- // (AliGenPythia::SetNuclei) and with kCTEQ4L PDFs.
- // To get a good agreement the minimum ptHard (AliGenPythia::SetPtHard)
- // has to be set to 2.1GeV. Example in ConfigCharmPPR.C.
- ConfigHeavyFlavor();
- // Intrinsic <kT>
- ReadString("Beams:primordialKT = on");
- ReadString("Beams:primordialKTsoft = 0.");
- ReadString("Beams:primordialKThard = 1.16");
- ReadString("Beams:halfScaleForKT = 0.");
- ReadString("Beams:halfMassForKT = 0.");
- // Set c-quark mass
- ReadString("ParticleData:mcRun = 1.20");
- break;
- case kPyCharmppMNR:
- case kPyD0ppMNR:
- case kPyDPlusppMNR:
- case kPyDPlusStrangeppMNR:
- // Tuning of Pythia parameters aimed to get a resonable agreement
- // between with the NLO calculation by Mangano, Nason, Ridolfi for the
- // c-cbar single inclusive and double differential distributions.
- // This parameter settings are meant to work with pp collisions
- // (AliGenPythia::SetNuclei) and with kCTEQ4L PDFs.
- // To get a good agreement the minimum ptHard (AliGenPythia::SetPtHard)
- // has to be set to 2.1GeV. Example in ConfigCharmPPR.C.
- ConfigHeavyFlavor();
- // Intrinsic <kT^2>
- ReadString("Beams:primordialKT = on");
- ReadString("Beams:primordialKTsoft = 0.");
- ReadString("Beams:primordialKThard = 1.");
- ReadString("Beams:halfScaleForKT = 0.");
- ReadString("Beams:halfMassForKT = 0.");
- // Set c-quark mass
- ReadString("ParticleData:mcRun = 1.20");
- break;
- case kPyCharmppMNRwmi:
- // Tuning of Pythia parameters aimed to get a resonable agreement
- // between with the NLO calculation by Mangano, Nason, Ridolfi for the
- // c-cbar single inclusive and double differential distributions.
- // This parameter settings are meant to work with pp collisions
- // and with kCTEQ5L PDFs.
- // Added multiple interactions according to ATLAS tune settings.
- // To get a "reasonable" agreement with MNR results, events have to be
- // generated with the minimum ptHard (AliGenPythia::SetPtHard)
- // set to 2.76 GeV.
- // To get a "perfect" agreement with MNR results, events have to be
- // generated in four ptHard bins with the following relative
- // normalizations:
- // 2.76-3 GeV: 25%
- // 3-4 GeV: 40%
- // 4-8 GeV: 29%
- // >8 GeV: 6%
- ConfigHeavyFlavor();
- // Intrinsic <kT^2>
- ReadString("Beams:primordialKT = on");
- ReadString("Beams:primordialKTsoft = 0.");
- ReadString("Beams:primordialKThard = 1.");
- ReadString("Beams:halfScaleForKT = 0.");
- ReadString("Beams:halfMassForKT = 0.");
- // Set c-quark mass
- ReadString("ParticleData:mcRun = 1.20");
- AtlasTuning();
- break;
- case kPyBeautyPbPbMNR:
- // Tuning of Pythia parameters aimed to get a resonable agreement
- // between with the NLO calculation by Mangano, Nason, Ridolfi for the
- // b-bbar single inclusive and double differential distributions.
- // This parameter settings are meant to work with Pb-Pb collisions
- // (AliGenPythia::SetNuclei) and with kCTEQ4L PDFs.
- // To get a good agreement the minimum ptHard (AliGenPythia::SetPtHard)
- // has to be set to 2.75GeV. Example in ConfigBeautyPPR.C.
- ConfigHeavyFlavor();
- // QCD scales
- ReadString("SigmaProcess:factorMultFac = 1.");
- // Intrinsic <kT>
- ReadString("Beams:primordialKT = on");
- ReadString("Beams:primordialKTsoft = 0.");
- ReadString("Beams:primordialKThard = 2.035");
- ReadString("Beams:halfScaleForKT = 0.");
- ReadString("Beams:halfMassForKT = 0.");
- // Set b-quark mass
- ReadString("ParticleData:mbRun = 4.75");
- break;
- case kPyBeautypPbMNR:
- // Tuning of Pythia parameters aimed to get a resonable agreement
- // between with the NLO calculation by Mangano, Nason, Ridolfi for the
- // b-bbar single inclusive and double differential distributions.
- // This parameter settings are meant to work with p-Pb collisions
- // (AliGenPythia::SetNuclei) and with kCTEQ4L PDFs.
- // To get a good agreement the minimum ptHard (AliGenPythia::SetPtHard)
- // has to be set to 2.75GeV. Example in ConfigBeautyPPR.C.
- ConfigHeavyFlavor();
- // QCD scales
- ReadString("SigmaProcess:factorMultFac = 1.");
- // Intrinsic <kT>
- ReadString("Beams:primordialKT = on");
- ReadString("Beams:primordialKTsoft = 0.");
- ReadString("Beams:primordialKThard = 1.6");
- ReadString("Beams:halfScaleForKT = 0.");
- ReadString("Beams:halfMassForKT = 0.");
- // Set b-quark mass
- ReadString("ParticleData:mbRun = 4.75");
- break;
- case kPyBeautyppMNR:
- // Tuning of Pythia parameters aimed to get a resonable agreement
- // between with the NLO calculation by Mangano, Nason, Ridolfi for the
- // b-bbar single inclusive and double differential distributions.
- // This parameter settings are meant to work with pp collisions
- // (AliGenPythia::SetNuclei) and with kCTEQ4L PDFs.
- // To get a good agreement the minimum ptHard (AliGenPythia::SetPtHard)
- // has to be set to 2.75GeV. Example in ConfigBeautyPPR.C.
- ConfigHeavyFlavor();
- // QCD scales
- ReadString("SigmaProcess:factorMultFac = 1.");
- // Intrinsic <kT>
- ReadString("Beams:primordialKT = on");
- ReadString("Beams:primordialKTsoft = 0.");
- ReadString("Beams:primordialKThard = 1.0");
- ReadString("Beams:halfScaleForKT = 0.");
- ReadString("Beams:halfMassForKT = 0.");
- // Set b-quark mass
- ReadString("ParticleData:mbRun = 4.75");
- break;
- case kPyBeautyppMNRwmi:
- // Tuning of Pythia parameters aimed to get a resonable agreement
- // between with the NLO calculation by Mangano, Nason, Ridolfi for the
- // b-bbar single inclusive and double differential distributions.
- // This parameter settings are meant to work with pp collisions
- // and with kCTEQ5L PDFs.
- // Added multiple interactions according to ATLAS tune settings.
- // To get a "reasonable" agreement with MNR results, events have to be
- // generated with the minimum ptHard (AliGenPythia::SetPtHard)
- // set to 2.76 GeV.
- // To get a "perfect" agreement with MNR results, events have to be
- // generated in four ptHard bins with the following relative
- // normalizations:
- // 2.76-4 GeV: 5%
- // 4-6 GeV: 31%
- // 6-8 GeV: 28%
- // >8 GeV: 36%
- ConfigHeavyFlavor();
- // QCD scales
- ReadString("SigmaProcess:factorMultFac = 1.");
- // Intrinsic <kT>
- ReadString("Beams:primordialKT = on");
- ReadString("Beams:primordialKTsoft = 0.");
- ReadString("Beams:primordialKThard = 1.0");
- ReadString("Beams:halfScaleForKT = 0.");
- ReadString("Beams:halfMassForKT = 0.");
- // Set b-quark mass
- ReadString("ParticleData:mbRun = 4.75");
- AtlasTuning();
- break;
- case kPyW:
- //Inclusive production of W+/-
- //f fbar -> W+
- ReadString("WeakSingleBoson:ffbar2W = on");
- // Initial/final parton shower on (Pythia default)
- // With parton showers on we are generating "W inclusive process"
- ReadString("PartonLevel:ISR = on");
- ReadString("PartonLevel:FSR = on");
- break;
- case kPyZ:
- //Inclusive production of Z
- //f fbar -> Z/gamma
- ReadString("WeakSingleBoson:ffbar2gmZ = on");
- //only Z included, not gamma
- ReadString("WeakZ0:gmZmode = 2");
- // Initial/final parton shower on (Pythia default)
- // With parton showers on we are generating "Z inclusive process"
- ReadString("PartonLevel:ISR = on");
- ReadString("PartonLevel:FSR = on");
- break;
- }
-//
-// Initialize PYTHIA
-// SetMSTP(41,1); // all resonance decays switched on
- Initialize(2212, 2212, fEcms);
-}
-
-void AliPythia8::SetNuclei(Int_t /*a1*/, Int_t /*a2*/)
-{
-// Treat protons as inside nuclei with mass numbers a1 and a2
-// The MSTP array in the PYPARS common block is used to enable and
-// select the nuclear structure functions.
-// MSTP(52) : (D=1) choice of proton and nuclear structure-function library
-// =1: internal PYTHIA acording to MSTP(51)
-// =2: PDFLIB proton s.f., with MSTP(51) = 1000xNGROUP+NSET
-// If the following mass number both not equal zero, nuclear corrections of the stf are used.
-// MSTP(192) : Mass number of nucleus side 1
-// MSTP(193) : Mass number of nucleus side 2
-// SetMSTP(52,2);
-// SetMSTP(192, a1);
-// SetMSTP(193, a2);
-}
-
-
-AliPythia8* AliPythia8::Instance()
-{
-// Set random number generator
- if (fgAliPythia8) {
- return fgAliPythia8;
- } else {
- fgAliPythia8 = new AliPythia8();
- return fgAliPythia8;
- }
-}
-
-void AliPythia8::PrintParticles()
-{
-// Print list of particl properties
- ReadString("Main:showAllParticleData");
-}
-
-void AliPythia8::ResetDecayTable()
-{
-// Set default values for pythia decay switches
-// Int_t i;
-// for (i = 1; i < 501; i++) SetMDCY(i,1,fDefMDCY[i]);
-// for (i = 1; i < 2001; i++) SetMDME(i,1,fDefMDME[i]);
-}
-
-void AliPythia8::SetDecayTable()
-{
-// Set default values for pythia decay switches
-//
-// Int_t i;
-// for (i = 1; i < 501; i++) fDefMDCY[i] = GetMDCY(i,1);
-// for (i = 1; i < 2001; i++) fDefMDME[i] = GetMDME(i,1);
-}
-
-void AliPythia8::Pyclus(Int_t& njet)
-{
-// Call Pythia clustering algorithm
-//
- Bool_t ok = fClusterJet.analyze(Pythia8()->event, fYScale, fPtScale, fNJetMin, fNJetMax);
- njet = 0;
- if (ok) njet = fClusterJet.size();
-}
-
-void AliPythia8::Pycell(Int_t& njet)
-{
-// Call Pythia jet reconstruction algorithm
-//
- Bool_t ok = fCellJet.analyze(Pythia8()->event, fMinEtJet, fRJet, fEtSeed);
- njet = 0;
- if (ok) njet = fCellJet.size();
-}
-
-void AliPythia8::GetJet(Int_t i, Float_t& px, Float_t& py, Float_t& pz, Float_t& e)
-{
- // Get jet number i
- Float_t et = fCellJet.eT(i);
- px = et * TMath::Cos(fCellJet.phiWeighted(i));
- py = et * TMath::Sin(fCellJet.phiWeighted(i));
- pz = et * TMath::SinH(fCellJet.etaWeighted(i));
- e = et * TMath::CosH(fCellJet.etaWeighted(i));
-}
-
-void AliPythia8::GenerateEvent()
-{
- // Generate one event
- TPythia8::GenerateEvent();
-}
-
-void AliPythia8::GenerateMIEvent()
-{
- // New multiple interaction scenario
- AliWarning("Not implemented. No event will be generated");
-}
-
-void AliPythia8::PrintStatistics()
-{
- // End of run statistics
- TPythia8::PrintStatistics();
-}
-
-void AliPythia8::EventListing()
-{
- // End of run statistics
- TPythia8::EventListing();
-}
-
-Int_t AliPythia8::ProcessCode()
-{
- // Returns the subprocess code for the current event
- return Pythia8()->info.codeSub();
-}
-
-void AliPythia8::ConfigHeavyFlavor()
-{
- //
- // Default configuration for Heavy Flavor production
- //
- // All QCD processes
- //
- ReadString("HardQCD:all = on");
-
- // No multiple interactions
- ReadString("PartonLevel:MI = off");
- ReadString("MultipleInteractions:pTmin = 0.0");
- ReadString("MultipleInteractions:pT0Ref = 0.0");
-
- // Initial/final parton shower on (Pythia default)
- ReadString("PartonLevel:ISR = on");
- ReadString("PartonLevel:FSR = on");
-
- // 2nd order alpha_s
- ReadString("SigmaProcess:alphaSorder = 2");
-
- // QCD scales
- ReadString("SigmaProcess:renormScale2 = 2");
- ReadString("SigmaProcess:renormMultFac = 1.");
-}
-
-void AliPythia8::AtlasTuning()
-{
- //
- // Configuration for the ATLAS tuning
- ReadString(Form("PDF:LHAPDFset = %s", AliStructFuncType::PDFsetName(kCTEQ5L).Data()));
- ReadString("PartonLevel:MI = on");
- ReadString("MultipleInteractions:pTmin = 1.9");
- ReadString("MultipleInteractions:pT0Ref = 1.8");
- ReadString("MultipleInteractions:ecmRef = 1000.");
- ReadString("MultipleInteractions:expPow = 0.16");
- ReadString("MultipleInteractions:bProfile = 2");
- ReadString("MultipleInteractions:coreFraction = 0.16");
- ReadString("MultipleInteractions:coreRadius = 0.5");
-// SetPARP(85,0.33); // Regulates gluon prod. mechanism
-// SetPARP(86,0.66); // Regulates gluon prod. mechanism
- ReadString("SigmaProcess:factorMultFac = 1.");
-}
-
-void AliPythia8::SetPtHardRange(Float_t ptmin, Float_t ptmax)
-{
- // Set the pt hard range
- ReadString(Form("PhaseSpace:pTHatMin = %13.3f", ptmin));
- ReadString(Form("PhaseSpace:pTHatMax = %13.3f", ptmax));
-}
-
-void AliPythia8::SetYHardRange(Float_t /*ymin*/, Float_t /*ymax*/)
-{
- // Set the y hard range
- printf("YHardRange not implemented in Pythia8 !!!\n");
-
-}
-
-
-void AliPythia8::SetFragmentation(Int_t flag)
-{
- // Switch fragmentation on/off
- if (flag) {
- ReadString("HadronLevel:Hadronize = on");
- } else {
- ReadString("HadronLevel:Hadronize = off");
- }
-}
-
-void AliPythia8::SetInitialAndFinalStateRadiation(Int_t flag1, Int_t flag2)
-{
-// initial state radiation
- if (flag1) {
- ReadString("PartonLevel:ISR = on");
- } else {
- ReadString("PartonLevel:ISR = off");
- }
-// final state radiation
- if (flag2) {
- ReadString("PartonLevel:FSR = on");
- } else {
- ReadString("PartonLevel:FSR = off");
- }
-}
-
-void AliPythia8::SetIntrinsicKt(Float_t kt)
-{
- ReadString("Beams:primordialKT = on");
- ReadString("Beams:primordialKTsoft = 0.");
- ReadString(Form("Beams:primordialKThard = %13.3f", kt));
- ReadString("Beams:halfScaleForKT = 0.");
- ReadString("Beams:halfMassForKT = 0.");
-}
-
-void AliPythia8::SwitchHFOff()
-{
- // Switch off heavy flavor
- // Maximum number of quark flavours used in pdf
- ReadString("PDFinProcess:nQuarkIn = 3");
- // Maximum number of flavors that can be used in showers
- ReadString("TimeShower:nGluonToQuark = 3");
- ReadString("SpaceShower:nQuarkIn = 3");
-
-
-}
-
-void AliPythia8::SetPycellParameters(Float_t etaMax, Int_t nEta, Int_t nPhi,
- Float_t thresh, Float_t etseed, Float_t minet, Float_t r)
-{
-// Set pycell parameters
- fCellJet = Pythia8::CellJet( etaMax, nEta, nPhi, 2, 0, 0., 0., thresh);
- fEtSeed = etseed;
- fMinEtJet = minet;
- fRJet = r;
-}
-
-void AliPythia8::ModifiedSplitting()
-{
-//
-// We have to see how to implement this in Pythia8 !!!
-//
- // Modified splitting probability as a model for quenching
-// SetPARJ(200, 0.8);
-// SetMSTJ(41, 1); // QCD radiation only
-// SetMSTJ(42, 2); // angular ordering
-// SetMSTJ(44, 2); // option to run alpha_s
-// SetMSTJ(47, 0); // No correction back to hard scattering element
-// SetMSTJ(50, 0); // No coherence in first branching
-// SetPARJ(82, 1.); // Cut off for parton showers
-}
-
-
-void AliPythia8::InitQuenching(Float_t /*cMin*/, Float_t /*cMax*/, Float_t /*k*/, Int_t /*iECMethod*/, Float_t /*zmax*/, Int_t /*ngmax*/)
-{
- //
- //
- AliWarning("Not implemented !");
-}
-
-void AliPythia8::SwitchHadronisationOff()
-{
- // Switch off hadronisation
- ReadString("HadronLevel:Hadronize = off");
-}
-
-void AliPythia8::SwitchHadronisationOn()
-{
- // Switch on hadronisarion
- ReadString("HadronLevel:Hadronize = on");
-}
-
-
-void AliPythia8::GetXandQ(Float_t& x1, Float_t& x2, Float_t& q)
-{
- // Get x1, x2 and Q for this event
-
- q = Pythia8()->info.QFac();
- x1 = Pythia8()->info.x1();
- x2 = Pythia8()->info.x2();
-
-}
-
-Float_t AliPythia8::GetXSection()
-{
- // Get the total cross-section
- return Pythia8()->info.sigmaGen();
-}
-
-Float_t AliPythia8::GetPtHard()
-{
- // Get the pT hard for this event
- return Pythia8()->info.pTHat();
-}
-
-
-
-
-AliPythia8& AliPythia8::operator=(const AliPythia8& rhs)
-{
-// Assignment operator
- rhs.Copy(*this);
- return *this;
-}
-
- void AliPythia8::Copy(TObject&) const
-{
- //
- // Copy
- //
- Fatal("Copy","Not implemented!\n");
-}
-
-//
-// To be implemented
-//
-void AliPythia8::SetNumberOfParticles(Int_t /*i*/)
-{
- AliWarning("Not implemented");
-}
-
-void AliPythia8::EditEventList(Int_t /*i*/)
-{
- AliWarning("Not implemented");
-}
-
-void AliPythia8::Pyquen(Double_t /*a*/, Int_t /*b*/, Double_t /*c*/)
-{
- AliWarning("Cannot be used with Pythia8");
-}
-
-void AliPythia8::HadronizeEvent()
-{
- // Needs access to HadronLevel ?
- AliWarning("Not yet implemented");
-}
-
-void AliPythia8::GetQuenchingParameters(Double_t& /*xp*/, Double_t& /*yp*/, Double_t* /*z[4]*/)
-{
- AliWarning("Not yet implemented");
-}
-
-void AliPythia8::LoadEvent(AliStack* /*stack*/, Int_t /*flag*/, Int_t /*reHadr*/)
-{
- AliWarning("Not yet implemented");
-}
git://git.uio.no / u / mrichter / AliRoot.git / commitdiff