//______________________________________________________________________________
void alice_esd_read()
{
// Read tracks and associated clusters from current event.
AliESDRun *esdrun = (AliESDRun*) esd->fESDObjects->FindObject("AliESDRun");
TClonesArray *tracks = (TClonesArray*) esd->fESDObjects->FindObject("Tracks");
// This needs further investigation. Clusters not shown.
// AliESDfriend *frnd = (AliESDfriend*) esd->fESDObjects->FindObject("AliESDfriend");
// printf("Friend %p, n_tracks:%d\n", frnd, frnd->fTracks.GetEntries());
if (track_list == 0) {
track_list = new TEveTrackList("ESD Tracks");
track_list->SetMainColor(6);
//track_list->SetLineWidth(2);
track_list->SetMarkerColor(kYellow);
track_list->SetMarkerStyle(4);
track_list->SetMarkerSize(0.5);
gEve->AddElement(track_list);
}
TEveTrackPropagator* trkProp = track_list->GetPropagator();
trkProp->SetMagField( 0.1 * esdrun->fMagneticField ); // kGaus to Tesla
gProgress->Reset();
gProgress->SetMax(tracks->GetEntriesFast());
for (Int_t n=0; n<tracks->GetEntriesFast(); ++n)
{
AliESDtrack* at = (AliESDtrack*) tracks->At(n);
// If ITS refit failed, take track parameters at inner TPC radius.
AliExternalTrackParam* tp = at;
if (! trackIsOn(at, kITSrefit)) {
tp = at->fIp;
}
TEveTrack* track = esd_make_track(trkProp, n, at, tp);
track->SetAttLineAttMarker(track_list);
track_list->AddElement(track);
// This needs further investigation. Clusters not shown.
// if (frnd)
// {
// AliESDfriendTrack* ft = (AliESDfriendTrack*) frnd->fTracks->At(n);
// printf("%d friend = %p\n", ft);
// }
gProgress->Increment(1);
}
track_list->MakeTracks();
}
void pythia_display()
{
if (g_pythia != 0)
{
Warning("pythia_display()", "Already initialized.");
return;
}
#ifndef G__WIN32 // libPythia6 is a static library on Windoze
if (gSystem->Load("libPythia6") < 0)
{
Error("pythia_display()",
"Could not load 'libPythia6', make sure it is available!");
return;
}
#endif
gSystem->Load("libEGPythia6");
if (gROOT->LoadMacro("MultiView.C+") != 0)
{
Error("pythia_display()", "Failed loading MultiView.C in compiled mode.");
return;
}
//========================================================================
//========================================================================
// Create an instance of the Pythia event generator ...
g_pythia = new TPythia6;
TPythia6& P = * g_pythia;
P.SetMSEL(0); // full user controll;
P.SetMSUB(102, 1); // g + g -> H0
//P.SetMSUB(123, 1); // f + f' -> f + f' + H0
//P.SetMSUB(124, 1); // f + f' -> f" + f"' + H0
P.SetPMAS(6, 1, 175); // mass of TOP
P.SetPMAS(25, 1, 180); // mass of Higgs
P.SetCKIN(1, 170.0); // range of allowed mass
P.SetCKIN(2, 190.0);
P.SetMSTP(61, 0); // switch off ISR
P.SetMSTP(71, 0); // switch off FSR
P.SetMSTP(81, 0); // switch off multiple interactions
P.SetMSTP(111, 0); // Switch off fragmentation
// Force h0 -> ZZ
for (Int_t i = 210; i <= 288; ++i)
P.SetMDME(i, 1, 0);
P.SetMDME(225, 1, 1);
// Force Z -> mumu
for (Int_t i = 174; i <= 189; ++i)
P.SetMDME(i, 1, 0);
P.SetMDME(184, 1, 1);
P.Initialize("cms", "p", "p", 14000);
//========================================================================
// Create views and containers.
//========================================================================
TEveManager::Create();
TEveElementList *fake_geom = new TEveElementList("Geometry");
TEveGeoShape *b;
b = new TEveGeoShape("Barell 1");
b->SetShape(new TGeoTube(kR_min, kR_max, kZ_d));
b->SetMainColor(kCyan);
b->SetMainTransparency(80);
fake_geom->AddElement(b);
b = new TEveGeoShape("Barell 2");
b->SetShape(new TGeoTube(2*kR_min, 2*kR_max, 2*kZ_d));
b->SetMainColor(kPink-3);
b->SetMainTransparency(80);
fake_geom->AddElement(b);
gEve->AddGlobalElement(fake_geom);
gMultiView = new MultiView;
gMultiView->ImportGeomRPhi(fake_geom);
gMultiView->ImportGeomRhoZ(fake_geom);
gEve->GetBrowser()->GetTabRight()->SetTab(1);
gTrackList = new TEveTrackList("Pythia Tracks");
gTrackList->SetMainColor(kYellow);
gTrackList->SetMarkerColor(kRed);
gTrackList->SetMarkerStyle(4);
gTrackList->SetMarkerSize(0.5);
gEve->AddElement(gTrackList);
TEveTrackPropagator* trkProp = gTrackList->GetPropagator();
trkProp->SetMagField(kMagField);
trkProp->SetMaxR(2*kR_max);
trkProp->SetMaxZ(2*kZ_d);
//========================================================================
//========================================================================
pythia_make_gui();
pythia_next_event();
gEve->Redraw3D(kTRUE);
}
AliEveHFList* aod_HF()
{
Bool_t useParFiles=kFALSE;
// TEveUtil::LoadMacro("$ALICE_ROOT/PWGHF/vertexingHF/macros/LoadLibraries.C+");
// LoadLibraries(useParFiles);
AliAODEvent* aod = AliEveEventManager::AssertAOD();
AliESDEvent* esd = AliEveEventManager::Instance()->AssertESD();
/*
gSystem->Load("libANALYSIS");
gSystem->Load("libANALYSISalice");
gSystem->Load("libCORRFW");
gSystem->Load("libPWG3base");
gSystem->Load("libPWG3vertexingHF");
*/
// load MC particles
TClonesArray *mcArray =
(TClonesArray*) aod->FindListObject(AliAODMCParticle::StdBranchName());
if (!mcArray) {
printf("MC particles branch not found!\n");
return 0;
}
AliAODVertex* primVtx_aod = (AliAODVertex*) aod->GetPrimaryVertex();
// AliESDVertex *primVtx_esd = (AliESDVertex*) esd->GetPrimaryVertex();
AliEveHFList* cont = new AliEveHFList("AOD HF vertices");
cont->SetMainColor(2);
TEveTrackPropagator* rnrStyle = cont->GetPropagator();
rnrStyle->SetMagField( 0.1*aod->GetMagneticField() );
gEve->AddElement(cont);
TEvePointSet* pointsD0toKpi = new TEvePointSet("D0->Kpi vertex locations");
// load D0->Kpi candidates
TClonesArray *arrayD0toKpi = (TClonesArray*) aod->FindListObject("D0toKpi");
// load 3prong candidates
// TClonesArray *array3Prong =
// (TClonesArray*)aod->GetList()->FindObject("Charm3Prong");
Int_t countD0 = 0;
for (Int_t iD0toKpi=0; iD0toKpi<arrayD0toKpi->GetEntriesFast(); iD0toKpi++)
{
AliAODRecoDecayHF2Prong *rd = (AliAODRecoDecayHF2Prong*)arrayD0toKpi->UncheckedAt(iD0toKpi);
Bool_t unsetvtx=kFALSE;
if (!rd->GetOwnPrimaryVtx()) {
rd->SetOwnPrimaryVtx(primVtx_aod);
unsetvtx=kTRUE;
}
// REAL D0 particle. If you want to draw only real D0 un-comment these lines
//Int_t labD0 = rd->MatchToMC(421,mcArray);
//if(labD0<0) continue;
AliAODTrack *negAODTr = dynamic_cast<AliAODTrack *>(rd->GetDaughter(0));
AliAODTrack *posAODTr = dynamic_cast<AliAODTrack *>(rd->GetDaughter(1));
AliVVertex *secv = rd->GetSecondaryVtx();
AliESDtrack *negTr = new AliESDtrack(negAODTr);
AliESDtrack *posTr = new AliESDtrack(posAODTr);
negTr->PropagateToDCA((AliAODVertex*)secv,aod->GetMagneticField(),100.);
posTr->PropagateToDCA((AliAODVertex*)secv,aod->GetMagneticField(),100.);
AliEveHF* myD0 = aod_make_HF(rnrStyle,primVtx_aod,negTr,posTr,rd,iD0toKpi);
if (myD0) {
gEve->AddElement(myD0,cont);
countD0++;
}
pointsD0toKpi->SetNextPoint(rd->Xv(),rd->Yv(),rd->Zv());
pointsD0toKpi->SetPointId(rd);
if(unsetvtx) {
rd->UnsetOwnPrimaryVtx();
}
}
//cont->SetTitle("test");
cont->MakeHFs();
gEve->Redraw3D();
pointsD0toKpi->SetTitle(Form("N=%d", pointsD0toKpi->Size()));
pointsD0toKpi->SetMarkerStyle(4);
pointsD0toKpi->SetMarkerSize(1.5);
pointsD0toKpi->SetMarkerColor(kViolet);
gEve->AddElement(pointsD0toKpi);
gEve->Redraw3D();
return cont;
}