2 // Main authors: Matevz Tadel & Alja Mrak-Tadel: 2006, 2007
4 /**************************************************************************
5 * Copyright(c) 1998-2008, ALICE Experiment at CERN, all rights reserved. *
6 * See http://aliceinfo.cern.ch/Offline/AliRoot/License.html for *
7 * full copyright notice. *
8 **************************************************************************/
10 AliEveCascade* esd_make_cas(TEveTrackPropagator* rnrStyle, AliESDVertex* primVtx,
11 AliESDcascade* cas, AliESDtrack* neg, AliESDtrack* pos,
12 AliESDtrack* bach,Int_t i) {
14 AliEveCascade* myCas = new AliEveCascade(rnrStyle);
15 myCas->SetESDIndex(i);
17 static Double_t vx,vy,vz, px,py,pz;
18 cas->GetBPxPyPz(px,py,pz);
19 myCas->SetBachP(px,py,pz);
20 cas->GetNPxPyPz(px,py,pz);
21 myCas->SetNegP(px,py,pz);
22 cas->GetPPxPyPz(px,py,pz);
23 myCas->SetPosP(px,py,pz);
25 cas->GetXYZ(vx,vy,vz); // v0 decay vertex
26 myCas->SetV0vtx(vx,vy,vz);
27 cas->GetXYZcascade(vx,vy,vz); // cascade decay vertex
28 myCas->SetCascadeVtx(vx,vy,vz);
30 Double_t primx = primVtx->GetXv(),
31 primy = primVtx->GetYv(),
32 primz = primVtx->GetZv();
34 myCas->SetCasCosPointingAngle( cas->GetCascadeCosineOfPointingAngle(primx,primy,primz) );
35 myCas->SetDecayLength(primx, primy, primz);
36 myCas->SetDCA_v0_Bach(cas->GetDcaXiDaughters());
38 Float_t p = neg->GetP(), mc = neg->GetMass();
39 Float_t betaNeg = p/TMath::Sqrt(p*p + mc*mc);
40 p = pos->GetP(); mc = pos->GetMass();
41 Float_t betaPos = p/TMath::Sqrt(p*p + mc*mc);
42 p = bach->GetP(); mc = bach->GetMass();
43 Float_t betaBach = p/TMath::Sqrt(p*p + mc*mc);
44 if (bach->GetSign()<0) betaBach = -betaBach; // sign is stored is this parameter
46 myCas->SetBeta(betaNeg, betaPos, betaBach);
52 CascadeList* esd_AliEveCascade(Double_t min_pt=0.1, Double_t max_pt=100)
54 printf("THIS SCRIPT DOES NOT WORK.\n"
55 "AliEveCascade classes have been temporarily removed.\n"
56 "They need to be cleaned up.\n");
59 AliESDEvent* esd = AliEveEventManager::AssertESD();
60 AliESDVertex* primVertex =(AliESDVertex*) esd->GetVertex();
62 CascadeList* cont = new CascadeList("ESD cascade");
63 cont->SetMainColor(Color_t(3)); // green
64 TEveTrackPropagator* rnrStyle = cont->GetPropagator();
65 rnrStyle->SetMagField( 0.1*esd->GetMagneticField() );
67 gEve->AddElement(cont);
70 //for (Int_t n=0; count<3; n++) {
71 for (Int_t n=0; n<esd->GetNumberOfCascades(); n++) {
73 AliESDcascade *cas = esd->GetCascade(n);
74 Int_t negInd = cas->GetNindex();
75 Int_t posInd = cas->GetPindex();
76 Int_t bachInd = cas->GetBindex();
77 AliESDtrack* negTr = esd->GetTrack(negInd);
78 AliESDtrack* posTr = esd->GetTrack(posInd);
79 AliESDtrack* bachTr = esd->GetTrack(bachInd);
82 AliEveCascade* myCas = esd_make_cas(rnrStyle, primVertex, cas,
83 negTr, posTr, bachTr, n);
85 gEve->AddElement(myCas, cont);
91 cont->SetTitle("CascadeList");