/************************************************************************** * of the Greek group at Physics Department of Athens University * Paraskevi Ganoti, Anastasia Belogianni and Filimon Roukoutakis * 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. * **************************************************************************/ //----------------------------------------------------------------- // AliAnalysisKinkESDat class // Example of an analysis task for kink topology study // Kaons from kink topology are 'identified' in this code //----------------------------------------------------------------- #include "TChain.h" #include "TTree.h" #include "TH1F.h" #include "TH2F.h" #include "TH3F.h" #include "TH1D.h" #include "TH2D.h" #include "TParticle.h" #include #include "TF1.h" #include "AliAnalysisTask.h" #include "AliAnalysisManager.h" #include "AliVEvent.h" #include "AliESDEvent.h" #include "AliMCEvent.h" #include "AliAnalysisKinkESDat.h" #include "AliStack.h" #include "AliESDpid.h" #include "AliPID.h" #include "AliESDkink.h" #include "AliESDtrack.h" #include "AliPhysicsSelectionTask.h" #include "AliInputEventHandler.h" #include "AliAnalysisManager.h" #include "AliVEvent.h" //#include "AddTaskTender.h" // #include "AliTPCpidESD.h" #include "AliESDtrackCuts.h" ClassImp(AliAnalysisKinkESDat) //________________________________________________________________________ AliAnalysisKinkESDat::AliAnalysisKinkESDat(const char *name) : AliAnalysisTaskSE(name), fHistPtESD(0),fHistPt(0),fHistQtAll(0),fHistQt1(0),fHistQt2(0) , fHistPtKaon(0),fHistPtKPDG(0),fHistEta(0),fHistEtaK(0),fptKMC(0),fMultiplMC(0),fESDMult(0),fgenpt(0),frad(0), fKinkKaon(0),fKinKRbn(0), fKinkKaonBg(0), fM1kaon(0), fgenPtEtR(0),fPtKink(0), fptKink(0), fcodeH(0), fdcodeH(0), fAngMomK(0),fAngMomPi(0), fAngMomKC(0), fMultESDK(0), fMultMCK(0), fSignPtNcl(0), fSignPtEta(0), fEtaNcl(0), fSignPt(0), fChi2NclTPC(0), fRatChi2Ncl(0), fRadiusNcl(0), fTPCSgnlP(0), fTPCSgnlPa(0), fRpr(0),fZpr(0), fdcatoVxXY(0), fnSigmToVx(0), fKinkMothDau(0), fZvXv(0),fZvYv(0), fXvYv(0), fPtPrKink(0), fHistPtKaoP(0), fHistPtKaoN(0),frapiKESD(0), flifetime(), fradLK(0), fradPtRpDt(0), fInvMuNuAll(0), fQtInvM(0), fDCAkink(0), fPosiKink(0), fPosiKinkK(0),fPosiKinKXZ(0), fPosiKinKYZ(0), fPosiKinKBg(0), fQtMothP(0), f1(0), f2(0), fListOfHistos(0),fLowMulcut(-1),fUpMulcut(-1),fCutsMul(0) { // Constructor // Define input and output slots here // Input slot #0 works with a TChain // DefineInput(0, TChain::Class()); //----------------------Marek multiplicity bins fCutsMul=new AliESDtrackCuts("Mul","Mul"); fCutsMul->SetMinNClustersTPC(70); fCutsMul->SetMaxChi2PerClusterTPC(4); fCutsMul->SetAcceptKinkDaughters(kFALSE); fCutsMul->SetRequireTPCRefit(kTRUE); // ITS fCutsMul->SetRequireITSRefit(kTRUE); fCutsMul->SetClusterRequirementITS(AliESDtrackCuts::kSPD, AliESDtrackCuts::kAny); fCutsMul->SetMaxDCAToVertexXYPtDep("0.0182+0.0350/pt^1.01"); fCutsMul->SetMaxDCAToVertexZ(2); fCutsMul->SetDCAToVertex2D(kFALSE); fCutsMul->SetRequireSigmaToVertex(kFALSE); fCutsMul->SetEtaRange(-0.8,+0.8); fCutsMul->SetPtRange(0.15, 1e10); DefineOutput(1, TList::Class()); } //________________________________________________________________________ void AliAnalysisKinkESDat::UserCreateOutputObjects() { // Create histograms // Called once f1=new TF1("f1","((atan([0]*[1]*(1.0/(sqrt((x^2)*(1.0-([1]^2))-([0]^2)*([1]^2))))))*180.)/[2]",1.1,10.0); f1->SetParameter(0,0.493677); f1->SetParameter(1,0.9127037); f1->SetParameter(2,TMath::Pi()); f2=new TF1("f2","((atan([0]*[1]*(1.0/(sqrt((x^2)*(1.0-([1]^2))-([0]^2)*([1]^2))))))*180.)/[2]",0.1,10.0); f2->SetParameter(0,0.13957018); f2->SetParameter(1,0.2731374); f2->SetParameter(2,TMath::Pi()); //Open file 1= CAF //OpenFile(1); // Double_t gPt[31] = {0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8,0.9,1.0, // 1.1, 1.2, 1.3, 1.4, 1.5, 1.6,1.7,1.8,1.9, 2.0, // 2.2, 2.4, 2.6, 2.8, 3.0, 3.3, 3.6,3.9, 4.2, 4.5, 4.8}; Double_t gPt7[43] = {0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8,0.9,1.0, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6,1.7,1.8,1.9, 2.0, 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7,2.8, 2.9, 3.0, 3.2, 3.4, 3.6, 3.8, 4.0, 4.4, 4.8,5.2, 5.6, 6.0, 7.0, 8.0,10.0 }; fHistPtESD = new TH1F("fHistPtESD", "P_{T} distribution",50, 0.0,5.0); fHistPtESD->GetXaxis()->SetTitle("P_{T} (GeV/c)"); fHistPtESD->GetYaxis()->SetTitle("dN/dP_{T} (c/GeV)"); fHistPtESD->SetMarkerStyle(kFullCircle); fHistPt = new TH1F("fHistPt", "P_{T} distribution",50, 0.0,5.0); fHistQtAll = new TH1F("fHistQtAll", "Q_{T} distr All Kinks ",100, 0.0,.300); fHistQt1= new TH1F("fHistQt1", "Q_{T} distribution",100, 0.0,.300); fHistQt2= new TH1F("fHistQt2", "Q_{T} distribution",100, 0.0,.300); //fHistPtKaon = new TH1F("fHistPtKaon", "P_{T}Kaon distribution",50, 0.0,5.0); fHistPtKaon = new TH1F("fHistPtKaon", "P_{T}Kaon distribution",100, 0.0,10.0); fHistPtKPDG = new TH1F("fHistPtKPDG", "P_{T}Kaon distribution",50, 0.0,5.0); fHistEta= new TH1F("fHistEta", "Eta distribution", 26,-1.3, 1.3); fHistEtaK= new TH1F("fHistEtaK", "EtaK distribution", 26,-1.3, 1.3); fptKMC= new TH1F("fptKMC", "P_{T}Kaon generated",100, 0.0,10.0); fMultiplMC= new TH1F("fMultiplMC", "charge multiplicity MC",100, 0.0,300.0); fESDMult= new TH1F("fESDMult", "charge multipliESD",100, 0.0,300.0); fgenpt= new TH1F("fgenpt", "genpt K distribution",50, 0.0,5.0); //frad= new TH1F("frad", "radius K generated",100, 50., 250.0); frad= new TH1F("frad", "radius K generated",100, 0.,1000.0); // fKinkKaon= new TH1F("fKinkKaon", "P_{T}Kaon kinks identi",50, 0.0,5.0); fKinkKaon= new TH1F("fKinkKaon", "P_{T}Kaon kinks identi",100, 0.0,10.0); fKinKRbn= new TH1F("fKinKRbn", "p_{t}Kaon kinks identi[GeV/c],Entries",42,gPt7); fKinkKaonBg= new TH1F("fKinkKaonBg", "P_{T}Kaon kinks backgr",50, 0.0,5.0); fM1kaon= new TH1F("fM1kaon","Invar m(kaon) from kink->mu+netrino decay",80,0.0, 0.8); fgenPtEtR= new TH1F("fgenPtEtR", "P_{T}Kaon distribution",50, 0.0,5.0); fPtKink= new TH1F("fPtKink", "P_{T}Kaon Kink bution",50, 0.0,5.0); fptKink= new TH1F("fptKink", "P_{T}Kaon Kink bution",50, 0.0,5.0); fcodeH = new TH2F("fcodeH", "code vrs dcode dist. kinks,K",100,0.,2500.,100,0.,2500.); fdcodeH = new TH2F("fdcodeH", "code vrs dcode dist. kinks,K",100,0.,2500.,100,0.,2500.); fAngMomK= new TH2F("fAngMomK","Decay angle vrs Mother Mom,K",100,0.0,5.0,80,0.,80.); fAngMomPi= new TH2F("fAngMomPi","Decay angle vrs Mother Mom,Pi",100,0.0,5.0,80,0.,80.); fAngMomKC= new TH2F("fAngMomKC","Decay angle vrs Mother Mom,K",100,0.0,5.0,80,0.,80.); fMultESDK=new TH1F("fMultESDK", "charge multipliESD kaons",100, 0.0,100.0); fMultMCK=new TH1F("fMultMCK", "charge multipli MC kaons",100, 0.0,100.0); fSignPtNcl= new TH2F("fSignPtNcl","SignPt vrs Ncl,K",80,-4.,4.0,70,20.,160.); fSignPtEta= new TH2F("fSignPtEta","SignPt vrs Eta,K",80,-4.0,4.0,30,-1.5,1.5); fEtaNcl= new TH2F("fEtaNcl","Eta vrs nclust,K",30,-1.5,1.5, 70,20, 160); //fSignPt= new TH1F("fSignPt","SignPt ,K",40,-4.0,4.0); fSignPt= new TH1F("fSignPt","SignPt ,K",80,-4.0,4.0); fChi2NclTPC= new TH2F("fChi2NclTPC","Chi2vrs nclust,K",100,0.,500., 70,20, 160); fRatChi2Ncl= new TH1F("fRatChi2Ncl","Ratio chi2/nclusters in TPC,K",50,0.0,5.0); fRadiusNcl = new TH2F("fRadiusNcl","kink radius vrs Nclust,K",75,100.,250., 70,20, 160); fTPCSgnlP = new TH2F("fTPCSgnlP","TPC signal de/dx Mom,K",100,0.0,4.0,100,0.,250.); fTPCSgnlPa= new TH2F("fTPCSgnlPa","TPC signal de/dx Mom,K",100,0.0,4.,100, 0.,250.); fRpr = new TH1D("fRpr", "rad distribution PID pr",100,-10.0, 10.0); fZpr = new TH1D("fZpr", "z distribution PID pr ",80,-20.,20.); fdcatoVxXY = new TH1D("fdcatoVxXY", "dca distribution PID ",20,-1.,1.); fnSigmToVx = new TH1D("fnSigmToVx", "dca distribution PID ",80,0.,8.); fKinkMothDau= new TH2F("fKinkMothDau","TPC kink Moth Daugh ,K",50,0.0,2.5,50, 0., 2.5); fZvXv= new TH2F("fZvXv","Xv-Zv main vtx",60,-0.5,0.5,60, -15., 15.0); fZvYv= new TH2F("fZvYv","Yv-Zv main vtx",60,-0.5,0.5, 60, -15., 15.); fXvYv= new TH2F("fXvYv","Xv-Yv main vtx", 60,-1.5,1.5, 60, -1.5, 1.5); fPtPrKink=new TH1F("fPtPrKink","pt of ESD kaonKink tracks",100, 0.0,10.0); // fHistPtKaoP = new TH1F("fHistPtKaoP", "P_{T}KaonP distribution",50, 0.0,5.0); fHistPtKaoP = new TH1F("fHistPtKaoP", "P_{T}KaonP distribution",100, 0.0,10.0); // fHistPtKaoN = new TH1F("fHistPtKaoN", "P_{T}KaonN distribution",50, 0.0,5.0); fHistPtKaoN = new TH1F("fHistPtKaoN", "P_{T}KaonN distribution",100, 0.0,10.0); frapiKESD=new TH1F("frapiKESD","rapid Kdistribution", 26,-1.3, 1.3); flifetime= new TH1F("flifetime", "ct study of K-kinks",100,0.,1000.); fradLK= new TH1F("fradLK", "Length of K generated",100,0.,1000.); fradPtRpDt=new TH3F("fradPtRpDt","rad pt rap dat",28,100.,240., 20, 0., 5., 20, -1., 1. ); fInvMuNuAll= new TH1F("fInvMuNuAll", " Inv Mass MuNu all kink",80,0.,0.8); fQtInvM= new TH2F("fQtInvM", "Q_{T} Versus Inv MuNu ",80, 0., 0.80 , 100 , 0., 0.300); fDCAkink = new TH1F("fDCAkink ", "DCA kink vetrex ",50, 0.0,1.0); fPosiKink= new TH2F("fPosiKink", "Y vrx kink Vrex ",100, -300.0,300.0,100, -300, 300.); fPosiKinkK= new TH2F("fPosiKinkK", "Y vrx kink VrexK ",100, -300.0,300.0,100, -300, 300.); fPosiKinKXZ= new TH2F("fPosiKinKXZ", "Y vrx kink VrexK ",100, -300.0,300.0,100, -300, 300.); fPosiKinKYZ= new TH2F("fPosiKinKYZ", "Y vrx kink VrexK ",100, -300.0,300.0,100, -300, 300.); fPosiKinKBg= new TH2F("fPosiKinKBg", "z vrx kink rad ",100, -300.0,300.0,100,100., 300.); fQtMothP = new TH2F("fQtMothP", " Qt vrs Mother P", 100, 0., 5.0,100, 0.,0.300); fListOfHistos=new TList(); fListOfHistos->Add(fHistPtESD); fListOfHistos->Add(fHistPt); fListOfHistos->Add(fHistQtAll); fListOfHistos->Add(fHistQt1); fListOfHistos->Add(fHistQt2); fListOfHistos->Add(fHistPtKaon); fListOfHistos->Add(fHistPtKPDG); fListOfHistos->Add(fHistEta); fListOfHistos->Add(fHistEtaK); fListOfHistos->Add(fptKMC); fListOfHistos->Add(fMultiplMC); fListOfHistos->Add(fESDMult); fListOfHistos->Add(fgenpt); fListOfHistos->Add(frad); fListOfHistos->Add(fKinkKaon); fListOfHistos->Add(fKinKRbn); fListOfHistos->Add(fKinkKaonBg); fListOfHistos->Add(fM1kaon); fListOfHistos->Add(fgenPtEtR); fListOfHistos->Add(fPtKink); fListOfHistos->Add(fptKink); fListOfHistos->Add(fcodeH); fListOfHistos->Add(fdcodeH); fListOfHistos->Add(fAngMomK); fListOfHistos->Add(fAngMomPi); fListOfHistos->Add(fAngMomKC); fListOfHistos->Add(fMultESDK); fListOfHistos->Add(fMultMCK); fListOfHistos->Add(fSignPtNcl); fListOfHistos->Add(fSignPtEta); fListOfHistos->Add(fEtaNcl); fListOfHistos->Add(fSignPt); fListOfHistos->Add(fChi2NclTPC); fListOfHistos->Add(fRatChi2Ncl); fListOfHistos->Add(fRadiusNcl); fListOfHistos->Add(fTPCSgnlP); fListOfHistos->Add(fTPCSgnlPa); fListOfHistos->Add(fRpr); fListOfHistos->Add(fZpr); fListOfHistos->Add(fdcatoVxXY); fListOfHistos->Add(fnSigmToVx); fListOfHistos->Add(fKinkMothDau); fListOfHistos->Add(fZvXv); fListOfHistos->Add(fZvYv); fListOfHistos->Add(fXvYv); fListOfHistos->Add(fPtPrKink); fListOfHistos->Add(fHistPtKaoP); fListOfHistos->Add(fHistPtKaoN); fListOfHistos->Add(frapiKESD); fListOfHistos->Add(flifetime); fListOfHistos->Add(fradLK); fListOfHistos->Add(fradPtRpDt); fListOfHistos->Add(fInvMuNuAll); fListOfHistos->Add(fQtInvM); fListOfHistos->Add(fDCAkink); fListOfHistos->Add(fPosiKink); fListOfHistos->Add(fPosiKinkK); fListOfHistos->Add(fPosiKinKXZ); fListOfHistos->Add(fPosiKinKYZ); fListOfHistos->Add(fPosiKinKBg); fListOfHistos->Add(fQtMothP); } //=======================new thing // Float_t nCrossedRowsTPC = esdTrack->GetTPCClusterInfo(2,1); // Float_t ratioCrossedRowsOverFindableClustersTPC = 1.0; // if (esdTrack->GetTPCNclsF()>0) { // ratioCrossedRowsOverFindableClustersTPC = nCrossedRowsTPC / esdTrack->GetTPCNclsF(); // } //________________________________________________________________________ void AliAnalysisKinkESDat::UserExec(Option_t *) { // Main loop // Called for each event // Process MC truth, therefore we receive the AliAnalysisManager and ask it for the AliMCEventHandler // This handler can return the current MC event AliVEvent *event = InputEvent(); if (!event) { Printf("ERROR: Could not retrieve event"); return; } AliESDEvent* esd = dynamic_cast(event); if (!esd) { Printf("ERROR: Could not retrieve esd"); return; } //==================check of Physics selection? Bool_t isSelected = ((AliInputEventHandler*)(AliAnalysisManager::GetAnalysisManager()->GetInputEventHandler()))->IsEventSelected()&AliVEvent::kMB; if ( isSelected ==kFALSE) return; // 24/6/11 apo MF // // Int_t nESDTracks = esd->GetNumberOfTracks(); fMultMCK->Fill(nESDTracks); //===============Marek multiplicity Float_t refmultiplicity=fCutsMul->CountAcceptedTracks(esd); if(fLowMulcut>-1) { if(refmultiplicity-1) { if(refmultiplicity>fUpMulcut) return; } fMultESDK->Fill(refmultiplicity); // // Int_t nESDTracks = esd->GetNumberOfTracks(); // if ( nESDTracks>0 ) fMultMCK->Fill(nESDTracks); const AliESDVertex *vertex=GetEventVertex(esd); // 22/8 if(!vertex) return; fMultiplMC->Fill(nESDTracks); // Double_t vpos[3]; vertex->GetXYZ(vpos); fZpr->Fill(vpos[2]); if (TMath::Abs( vpos[2] ) > 10. ) return; Double_t vtrack[3], ptrack[3]; Int_t nESDTracK = 0; Int_t nESDTrKink = 0; Int_t nGoodTracks = esd->GetNumberOfTracks(); fESDMult->Fill(nGoodTracks); Double_t fAlephParameters[5] = {0.0283086, 2.63394e+01, 5.04114e-11, 2.12543e+00, 4.88663e+00}; Double_t nsigma = 100.0; AliESDpid *fESDpid = new AliESDpid(); fESDpid->GetTPCResponse().SetBetheBlochParameters(fAlephParameters[0], fAlephParameters[1], fAlephParameters[2], fAlephParameters[3], fAlephParameters[4]); // // track loop for (Int_t iTracks = 0; iTracks < esd->GetNumberOfTracks(); iTracks++) { AliESDtrack* track = esd->GetTrack(iTracks); if (!track) { Printf("ERROR: Could not receive track %d", iTracks); continue; } fHistPt->Fill(track->Pt()); // sigmas nsigma = TMath::Abs(fESDpid->NumberOfSigmasTPC(track,AliPID::kKaon)); Int_t tpcNCl = track->GetTPCclusters(0); Double_t tpcSign = track->GetSign(); Int_t label = track->GetLabel(); label = TMath::Abs(label); UInt_t status=track->GetStatus(); if((status&AliESDtrack::kITSrefit)==0) continue; if((status&AliESDtrack::kTPCrefit)==0) continue; if((track->GetTPCchi2()/track->GetTPCclusters(0))>3.8) continue; Double_t extCovPos[15]; track->GetExternalCovariance(extCovPos); if(extCovPos[0]>2) continue; if(extCovPos[2]>2) continue; if(extCovPos[5]>0.5) continue; if(extCovPos[9]>0.5) continue; if(extCovPos[14]>2) continue; track->GetXYZ(vtrack); fXvYv->Fill(vtrack[0],vtrack[1]); fZvYv->Fill(vtrack[0],vtrack[2]); fZvXv->Fill(vtrack[1],vtrack[2]); // track momentum, rapidity calculation track->GetPxPyPz(ptrack); TVector3 trackMom(ptrack[0],ptrack[1],ptrack[2]); Double_t etracK= TMath::Sqrt(trackMom.Mag()*trackMom.Mag() + 0.493677 *0.493677 ); Double_t rapiditK = 0.5 * (TMath::Log( (etracK + ptrack[2] ) / ( etracK - ptrack[2]) )) ; Double_t trackEta=trackMom.Eta(); Double_t trMoment=trackMom.Mag(); Double_t trackPt = track->Pt(); Float_t bpos[2]; Float_t bCovpos[3]; track->GetImpactParameters(bpos,bCovpos); if (bCovpos[0]<=0 || bCovpos[2]<=0) { Printf("Estimated b resolution lower or equal zero!"); bCovpos[0]=0; bCovpos[2]=0; } Float_t dcaToVertexXYpos = bpos[0]; Float_t dcaToVertexZpos = bpos[1]; fRpr->Fill(dcaToVertexZpos); if((TMath::Abs(dcaToVertexXYpos)>0.3)||(TMath::Abs(dcaToVertexZpos)>3.0)) nESDTrKink++; // count of second 23Jul11 // // if((dcaToVertexXYpos>0.3)||(dcaToVertexZpos>0.3)) continue; // allagi-dokini 3/6 // if((TMath::Abs(dcaToVertexXYpos)>0.4)||(dcaToVertexZpos>2.5)) continue; // allagi 23Jul11 if((TMath::Abs(dcaToVertexXYpos)>0.3)||(TMath::Abs(dcaToVertexZpos)>2.5)) continue; // allagi 23Jul11 // track Mult. after selection nESDTracK++; // //========================================= fHistPtESD->Fill(track->Pt()); // Add Kink analysis ============================= Int_t indexKinkPos=track->GetKinkIndex(0); // loop on kinks if(indexKinkPos<0){ ////mother kink fPtKink->Fill(track->Pt()); /// pt from track // select kink class AliESDkink *kink=esd->GetKink(TMath::Abs(indexKinkPos)-1); // // DCA kink Double_t Dist2 = kink->GetDistance(); fDCAkink->Fill( Dist2 ); // const TVector3 vposKink(kink->GetPosition()); fPosiKink ->Fill( vposKink[0], vposKink[1] ); // Double_t lengthK = TMath::Sqrt( vposKink[0]*vposKink[0] + vposKink[1]*vposKink[1] + vposKink[2]*vposKink[2] ) ; // Double_t dxKink = vpos[0]-vposKink[0], dyKink=vpos[1]-vposKink[1], dzKink=vpos[2]-vposKink[2]; Double_t dzKink=vpos[2]-vposKink[2]; // Double_t lifeKink= TMath::Sqrt( dxKink*dxKink + dyKink*dyKink + dzKink*dzKink ) ; // Double_t tanLamda = track->GetTgl(); // 25/6/2010 Double_t lifeKink= (TMath::Abs( dzKink ))*( TMath::Sqrt(1.+ tanLamda*tanLamda) ) / (TMath::Abs( tanLamda)) ; const TVector3 motherMfromKink(kink->GetMotherP()); const TVector3 daughterMKink(kink->GetDaughterP()); Float_t qT=kink->GetQt(); Float_t motherPt=motherMfromKink.Pt(); // Float_t etaMother=motherMfromKink.Eta(); fHistQtAll->Fill(qT) ; // Qt distr fptKink->Fill(motherMfromKink.Pt()); /// pt from kink Float_t kinkAngle=TMath::RadToDeg()*kink->GetAngle(2); if( (TMath::Abs(rapiditK )) > 0.7 ) continue; if ( (track->Pt())<.250)continue; fQtMothP->Fill( track->P(), qT); if ( qT> 0.04) fHistQt1 ->Fill(qT) ; // Qt distr fHistEta->Fill(trackEta) ; // Eta distr of PDG kink ESD kaons fHistQt2->Fill(qT); // PDG ESD kaons // maximum decay angle at a given mother momentum //Double_t maxDecAngKmu=f1->Eval(motherMfromKink.Mag(),0.,0.,0.); Double_t maxDecAngKmu=f1->Eval(track->P() ,0.,0.,0.); Double_t maxDecAngpimu=f2->Eval( track->P(), 0.,0.,0.); if( (kinkAngle<2.) ) continue; // BG ?????============== if ( TMath::Abs(vposKink[2]) > 225. ) continue ; if ( TMath::Abs(vposKink[2]) < 0.5 ) continue ; // if(( vposKink[2] >0. )&& (vposKink[2]< 5.) ) continue; // fKinkKaonBg->Fill(motherPt); fAngMomPi->Fill( track->P(), kinkAngle); // // invariant mass of mother track decaying to mu Float_t energyDaughterMu=TMath::Sqrt(daughterMKink.Mag()*daughterMKink.Mag()+0.105658*0.105658); Float_t p1XM= motherMfromKink.Px(); Float_t p1YM= motherMfromKink.Py(); Float_t p1ZM= motherMfromKink.Pz(); Float_t p2XM= daughterMKink.Px(); Float_t p2YM= daughterMKink.Py(); Float_t p2ZM= daughterMKink.Pz(); Float_t p3Daughter=TMath::Sqrt(((p1XM-p2XM)*(p1XM-p2XM))+((p1YM-p2YM)*(p1YM-p2YM))+((p1ZM-p2ZM)*(p1ZM-p2ZM))); Double_t invariantMassKmu= TMath::Sqrt((energyDaughterMu+p3Daughter)*(energyDaughterMu+p3Daughter)-motherMfromKink.Mag()*motherMfromKink.Mag()); fQtInvM -> Fill ( invariantMassKmu, qT); fInvMuNuAll->Fill(invariantMassKmu); // Float_t ptKink=TMath::Sqrt(p1XM*p1XM + p1YM*p1YM); if( ( kink->GetR()> 120 ) && ( kink->GetR() < 210 ) ) { if (qT>0.12) fAngMomKC->Fill(track->P(), kinkAngle); if ( qT>0.12) fM1kaon->Fill(invariantMassKmu); if ( qT > 0.12) fRadiusNcl->Fill( (kink->GetR()) ,(track->GetTPCclusters(0) ) ) ; } // fPosiKinKBg->Fill( vposKink[2], kink->GetR() ); if( ( tpcNCl<30) ) continue; if( ( ( track->GetTPCclusters(0) ) / (kink->GetR() ) ) > 0.63 ) continue; if( ( ( track->GetTPCclusters(0) ) / (kink->GetR() ) ) < 0.20 ) continue; // fHistPtKPDG->Fill(track->Pt()); // ALL KAONS (pdg) inside ESD kink sample //if((kinkAngle>maxDecAngpimu)&&(qT>0.04)&&(qT<0.30)&&((kink->GetR()>120.)&&(kink->GetR()<200.))&&(TMath::Abs(trackEta)<0.9)&&(invariantMassKmu<0.6)) { // if((kinkAngle>maxDecAngpimu)&&(qT>0.04)&&(qT<0.30)&&((kink->GetR()>=120.)&&(kink->GetR()<=200.))&&(TMath::Abs(etaMother)<0.9)&&(invariantMassKmu<0.6)){ if((kinkAngle>maxDecAngpimu)&&(qT>0.12)&&(qT<0.30)&&((kink->GetR()>=120.)&&(kink->GetR()<=210.))&&(TMath::Abs(rapiditK)<0.7)&&(invariantMassKmu<0.6)){ // 16/10 if((kinkAngle>maxDecAngpimu)&&(qT>0.04)&&(qT<0.30)&&((kink->GetR()>=120.)&&(kink->GetR()<=210.))&&(TMath::Abs(rapiditK)<0.7)&&(invariantMassKmu<0.6)){ // if((kinkAngle>maxDecAngpimu)&&(qT>0.04)&&(qT<0.30)&&((kink->GetR()>=133.)&&(kink->GetR()<=179.))&&(TMath::Abs(rapiditK)<0.5)&&(invariantMassKmu<0.6)){ // STAR if( (kinkAnglemaxDecAngKmu*.98) && ( track->P() >1.2 )) continue; ///5/5/2010 /* */ fTPCSgnlPa->Fill( trMoment ,(track->GetTPCsignal() ) ) ; if ( nsigma > 3.5) continue; fHistPtKaon->Fill(track->Pt()); //all PID kink-kaon if(tpcSign >0.) fHistPtKaoP->Fill( track->Pt() ) ; //all PID kink-kaon if ( tpcSign <0.) fHistPtKaoN->Fill( track->Pt() ) ; //all PID kink-kaon frad->Fill(kink->GetR()); // kink fradLK->Fill(lifeKink ); // kink fHistEtaK->Fill(trackEta); frapiKESD ->Fill(rapiditK); // rapidityof kaons fPosiKinKBg->Fill( vposKink[2], kink->GetR() ); Float_t signPt= tpcSign*trackPt; fSignPtNcl->Fill( signPt , tpcNCl ); /// 28/4/2010 fSignPtEta->Fill( signPt , rapiditK ); fEtaNcl->Fill( rapiditK, tpcNCl ); fSignPt->Fill( signPt ); fChi2NclTPC->Fill( (track->GetTPCchi2() ) , tpcNCl ); fRatChi2Ncl-> Fill ( (track->GetTPCchi2()/track->GetTPCclusters(0) )) ; fdcatoVxXY->Fill(dcaToVertexXYpos); fKinkMothDau->Fill(track->P(),daughterMKink.Mag()); fTPCSgnlP->Fill(track->P(), (track->GetTPCsignal() ) ) ; flifetime->Fill(( lifeKink*.493667 ) /track->P() ) ; fKinkKaon->Fill(track->Pt()); fKinKRbn->Fill(track->Pt()); fptKMC ->Fill( track->Pt() ); fradPtRpDt->Fill( kink->GetR(), 1./track->Pt(), rapiditK); fAngMomK->Fill( track->P(), kinkAngle); fPosiKinkK->Fill( vposKink[0], vposKink[1] ); fPosiKinKXZ->Fill( vposKink[2], vposKink[0] ); fPosiKinKYZ->Fill( vposKink[2], vposKink[1] ); } // kink selection } //End Kink Information } //track loop // fMultiplMC->Fill(nESDTracK ); PostData(1, fListOfHistos); } //________________________________________________________________________ void AliAnalysisKinkESDat::Terminate(Option_t *) { // Draw result to the screen // Called once at the end of the query } //____________________________________________________________________// const AliESDVertex* AliAnalysisKinkESDat::GetEventVertex(const AliESDEvent* esd) const // Get the vertex from the ESD and returns it if the vertex is valid { // Get the vertex // 24/3 const AliESDVertex* vertex = esd->GetPrimaryVertex(); const AliESDVertex* vertex = esd->GetPrimaryVertexTracks(); // if((vertex->GetStatus()==kTRUE)&&(vertex->GetNContributors()>2)) return vertex; if((vertex->GetStatus()==kTRUE)) return vertex; else { vertex = esd->GetPrimaryVertexSPD(); if((vertex->GetStatus()==kTRUE)&&(vertex->GetNContributors()>0)) return vertex; // if((vertex->GetStatus()==kTRUE)) return vertex; else return 0; } }