// M. Vala (email: martin.vala@cern.ch)
//
-#include "TObjArray.h"
+#include <TList.h>
#include "AliLog.h"
-#include "AliRsnFunction.h"
-#include "AliRsnPairParticle.h"
+#include "AliRsnMother.h"
+#include "AliRsnCutSet.h"
#include "AliRsnPair.h"
ClassImp(AliRsnPair)
//_____________________________________________________________________________
-AliRsnPair::AliRsnPair
-(EPairType type, AliRsnPairDef *def, Int_t mixNum, Double_t mixVzCut, Int_t mixMultCut) :
- TObject(),
- fIsMixed(kFALSE),
- fUseMC(kFALSE),
- fIsLikeSign(kFALSE),
- fMixNum(mixNum),
- fMixingCut(0x0),
- fPairDef(def),
- fPairType(type),
- fTypePID(AliRsnDaughter::kRealistic),
- fCutMgr(0),
- fFunctions("AliRsnFunction", 0)
+AliRsnPair::AliRsnPair(const char *name, AliRsnPairDef *def) :
+ TNamed(name, ""),
+ fOnlyTrue(kFALSE),
+ fCheckDecay(kFALSE),
+ fIsMixed(kFALSE),
+ fCount(0),
+ fPairDef(def),
+ fCutManager(Form("cutMgr_%s", name)),
+ fMother()
{
//
// Default constructor
-//
-
- SetUp(type);
-}
-//_____________________________________________________________________________
-AliRsnPair::~AliRsnPair()
-{
-//
-// Destructor
//
}
//_____________________________________________________________________________
-void AliRsnPair::SetUp(EPairType type)
+AliRsnPair::AliRsnPair(const AliRsnPair& copy) :
+ TNamed(copy),
+ fOnlyTrue(copy.fOnlyTrue),
+ fCheckDecay(copy.fCheckDecay),
+ fIsMixed(copy.fIsMixed),
+ fCount(copy.fCount),
+ fPairDef(copy.fPairDef),
+ fCutManager(copy.fCutManager),
+ fMother(copy.fMother)
{
//
-// Sets up flag values by the pair types
+// Default constructor
//
-
- switch (type)
- {
- case kNoPID:
- SetAllFlags(AliRsnDaughter::kNoPID, kFALSE, kFALSE);
- break;
- case kNoPIDMix:
- SetAllFlags(AliRsnDaughter::kNoPID, kTRUE, kFALSE);
- break;
- case kRealisticPID:
- SetAllFlags(AliRsnDaughter::kRealistic, kFALSE, kFALSE);
- break;
- case kRealisticPIDMix:
- SetAllFlags(AliRsnDaughter::kRealistic, kTRUE, kFALSE);
- break;
- case kPerfectPID:
- // SetAllFlags (AliRsnDaughter::kPerfect, kFALSE, kFALSE);
- SetAllFlags(AliRsnDaughter::kPerfect, kFALSE, kTRUE);
- break;
- case kPerfectPIDMix:
- // SetAllFlags (AliRsnDaughter::kPerfect, kTRUE, kFALSE);
- SetAllFlags(AliRsnDaughter::kPerfect, kTRUE, kTRUE);
- break;
- default :
- AliWarning("Wrong type selected: setting up for kRealisticPID.");
- SetAllFlags(AliRsnDaughter::kRealistic, kFALSE, kFALSE);
- break;
- }
}
//_____________________________________________________________________________
-void AliRsnPair::SetAllFlags(AliRsnDaughter::EPIDMethod pidType, Bool_t isMix, Bool_t useMC)
+AliRsnPair& AliRsnPair::operator=(const AliRsnPair& copy)
{
-//
-// Sets up all flags values
-//
+ fOnlyTrue = copy.fOnlyTrue;
+ fCheckDecay = copy.fCheckDecay;
+ fIsMixed = copy.fIsMixed;
+ fCount = copy.fCount;
+ fPairDef = copy.fPairDef;
+ fMother = copy.fMother;
+ fCutManager = copy.fCutManager;
- fTypePID = pidType;
- fIsMixed = isMix;
- fUseMC = useMC;
+ return (*this);
}
//_____________________________________________________________________________
-void AliRsnPair::Init()
+AliRsnPair::~AliRsnPair()
{
//
-// Init pair
+// Destructor
//
-
- fIsLikeSign = fPairDef->IsLikeSign();
- Print();
}
//_____________________________________________________________________________
-void AliRsnPair::Print()
+void AliRsnPair::Print(Option_t* /*option*/) const
{
//
// Prints info about pair
//
- AliInfo(Form("%s", GetPairHistTitle(0x0).Data()));
- AliInfo(Form("PDG %d %d", AliRsnPID::PDGCode(fPairDef->GetType(0)),
- AliRsnPID::PDGCode(fPairDef->GetType(1))));
- AliInfo(Form("Masses %f %f", fPairDef->GetMass(0), fPairDef->GetMass(1)));
- AliInfo(Form("Number of functions %d", fFunctions.GetEntries()));
- switch(fTypePID) {
- case AliRsnDaughter::kNoPID:
- AliInfo("PID method: none");
- break;
- case AliRsnDaughter::kRealistic:
- AliInfo("PID method: realistic");
- break;
- case AliRsnDaughter::kPerfect:
- AliInfo("PID method: perfect");
- break;
- default:
- AliInfo("PID method: undefined");
- }
-}
-
-//_____________________________________________________________________________
-void AliRsnPair::ProcessPair(AliRsnEventBuffer *buf)
-{
-//
-// Process one event in this pair
-//
-
- AliRsnEvent *e1 = buf->GetCurrentEvent();
- if (!e1) return;
-// if (e1->GetMultiplicity() < 1) return;
- TArrayI* array1 = e1->GetTracksArray(fTypePID, fPairDef->GetCharge(0), fPairDef->GetType(0));
-
- Int_t i = 0;
- Int_t numMixed = 0;
- Int_t lastOkEvent = 0;
- TArrayI* array2 = 0;
- for (i = 0; i < fMixNum; i++)
- {
- // find other event by event cut
- AliRsnEvent *e2 = 0;
- e2 = FindEventByEventCut(buf, lastOkEvent);
- if (!e2) return;
-// if (e2->GetMultiplicity() < 1) continue;
- array2 = e2->GetTracksArray(fTypePID, fPairDef->GetCharge(1), fPairDef->GetType(1));
- LoopPair(e1, array1, e2, array2);
- numMixed++;
- lastOkEvent++;
- }
-// if (fIsMixed) AliInfo (Form ("NumMixed = %d",numMixed));
-}
-
-//_____________________________________________________________________________
-AliRsnEvent * AliRsnPair::FindEventByEventCut(AliRsnEventBuffer *buf, Int_t& num)
-{
-//
-// For now it just returns num events before current event
-// in buffer (buf)
-// TODO event cut selection
-//
-
- AliRsnEvent *returnEvent = 0x0;
-
- if (fIsMixed)
- {
- //returnEvent = buf->GetEvent(buf->GetEventsBufferIndex() - num);
- returnEvent = buf->GetNextGoodEvent(num);
- }
- else
- {
- returnEvent = buf->GetCurrentEvent();
- }
-
- return returnEvent;
-}
-
-//_____________________________________________________________________________
-void AliRsnPair::LoopPair
-(AliRsnEvent * ev1, TArrayI * a1, AliRsnEvent * ev2, TArrayI * a2)
-{
-//
-// Loop on all pairs of tracks of the defined types/charges,
-// using the arrays of indexes and the events containing them.
-//
-
- if (!a1) {AliDebug(4, "No TArrayI 1 from currentEvent->GetTracksArray(...)"); return;}
- if (!a2) {AliDebug(4, "No TArrayI 2 from currentEvent->GetTracksArray(...)"); return;}
-
- AliRsnDaughter::SetPIDMethod(fTypePID);
- AliRsnDaughter *daughter1 = 0;
- AliRsnDaughter *daughter2 = 0;
- AliRsnFunction *fcn = 0;
- Int_t j, startj = 0;
- for (Int_t i = 0; i < a1->GetSize(); i++)
- {
- // get track #1
- daughter1 = (AliRsnDaughter *) ev1->GetTrack(a1->At(i));
- if (!daughter1) continue;
- // cuts on track #1
- if (!CutPass(daughter1)) continue;
- // get track #2
- daughter2 = 0;
- // check starting index for searching the event:
- // for like-sign pairs we avoid duplicating the pairs
- if (fIsLikeSign) startj = i+1; else startj = 0;
- // AliInfo(Form("%d",startj));
- // loop on event for all track #2 to be combined with the found track #1
- for (j = startj; j < a2->GetSize(); j++)
- {
- daughter2 = (AliRsnDaughter *) ev2->GetTrack(a2->At(j));
- if (!daughter2) continue;
- // cuts on track #2
- if (!CutPass(daughter2)) continue;
- // make pair
- AliRsnPairParticle pairParticle;
- pairParticle.SetPair(daughter1, daughter2);
- // cuts on pair
- if (!CutPass(&pairParticle)) continue;
- // fill all histograms
- TObjArrayIter nextFcn(&fFunctions);
- while ( (fcn = (AliRsnFunction*)nextFcn()) ) {
- fcn->Fill(&pairParticle, fPairDef);
- }
- }
- }
-}
-
-//_____________________________________________________________________________
-TList * AliRsnPair::GenerateHistograms(TString prefix)
-{
-//
-// Generates needed histograms
-//
-
- TList *list = new TList();
- list->SetName(GetPairHistName(0x0).Data());
-
- Char_t hName[255], hTitle[255];
- AliRsnFunction *fcn = 0;
- for (Int_t i=0;i< fFunctions.GetEntries();i++)
- {
- fcn = (AliRsnFunction*)fFunctions.At(i);
- sprintf(hName, "%s_%s", prefix.Data(), GetPairHistName(fcn).Data());
- sprintf(hTitle, "%s", GetPairHistTitle(fcn).Data());
- TList *histos = fcn->Init(hName, hTitle);
- histos->Print();
- list->Add(histos);
- }
-
- return list;
-}
-
-//_____________________________________________________________________________
-void AliRsnPair::GenerateHistograms(TString prefix, TList *tgt)
-{
-//
-// Generates needed histograms
-//
-
- if (!tgt) {
- AliError("NULL target list!");
- return;
- }
-
- Char_t hName[255], hTitle[255];
- AliRsnFunction *fcn = 0;
- for (Int_t i=0;i< fFunctions.GetEntries();i++)
- {
- fcn = (AliRsnFunction*)fFunctions.At(i);
- sprintf(hName, "%s_%s", prefix.Data(), GetPairHistName(fcn).Data());
- sprintf(hTitle, "%s", GetPairHistTitle(fcn).Data());
- fcn->Init(hName, hTitle, tgt);
- }
-}
-
-//_____________________________________________________________________________
-TString AliRsnPair::GetPairTypeName(EPairType type)
-{
-//
-// Returns type name, made with particle names ant chosen PID
-//
- switch (type)
- {
- case kNoPID : return ("NOPID_");break;
- case kNoPIDMix : return ("NOPIDMIX_");break;
- case kRealisticPID : return ("REALISTIC_");break;
- case kRealisticPIDMix : return ("REALISTICMIX_");break;
- case kPerfectPID : return ("PERFECT_");break;
- case kPerfectPIDMix : return ("PERFECTMIX_");break;
- case kTruePairs : return ("TRUEPAIRS_"); break;
- default:
- AliWarning("Unrecognized value of EPairTypeName argument");
- break;
- }
-
- return "NOTYPE";
}
//_____________________________________________________________________________
-TString AliRsnPair::GetPairName()
+Bool_t AliRsnPair::Fill
+(AliRsnDaughter *daughter1, AliRsnDaughter *daughter2, Bool_t refFirst)
{
//
-// Retruns pair name
+// Checks that first argument matches definitions for first daughter
+// and the same for second argument, where the order is defined by
+// the AliRsnPairDef data member.
+// If the matching is successful, the AliRsnMother data member is
+// initialized using the mass hypotheses defined here and the momenta
+// in the passed daughters.
+// The third argument is necessary to choose which one of the possible two
+// events owning the two daughter will be used as reference.
//
- TString sName;
- sName += GetPairTypeName(fPairType);
- sName += fPairDef->GetPairName();
+
+ // check matching and exit if one of them fails
+ // if true pair is required, this is taken into account:
+ // if both true pairs and correct decay tree is required,
+ // then we must be sure that also the true PID of daughters matches,
+ // instead if correct decay tree is not required this additional check is not done
+ if (!fPairDef->GetDef1()->MatchesDaughter(daughter1, fOnlyTrue && fCheckDecay)) return kFALSE;
+ if (!fPairDef->GetDef2()->MatchesDaughter(daughter2, fOnlyTrue && fCheckDecay)) return kFALSE;
+
+ // if matching is successful
+ // compute 4-momenta of daughters and mother
+ fMother.SetDaughter(0, daughter1);
+ fMother.SetDaughter(1, daughter2);
+ fMother.ComputeSum(fPairDef->GetMass1(), fPairDef->GetMass2());
+
+ // assign reference event
+ if (refFirst) fMother.SetRefEvent(daughter1->GetOwnerEvent()); else fMother.SetRefEvent(daughter2->GetOwnerEvent());
+
+ // if required a true pair, check this here and eventually return a fail message
+ // this is done using the method AliRsnMother::CommonMother with 2 arguments
+ // passed by reference, where the real GEANT label of the particle is stored
+ // and one can check if these tracks are both really secondaries (ID >= 0)
+ if (fOnlyTrue) {
+ Int_t m0, m1, common;
+ common = fMother.CommonMother(m0, m1);
+ if (m0 < 0 || m1 < 0) return kFALSE;
+ if (common != fPairDef->GetMotherPDG()) return kFALSE;
+ }
+
+ // point to first event as reference
+ // and checks the pair cuts,
+ // (done first because it is more likely
+ // that it is not passed and execution is faster)
+ if (!fCutManager.PassMotherCuts(&fMother)) return kFALSE;
- return sName;
-}
+ // cuts on track #1 & common
+ if (!fCutManager.PassDaughter1Cuts(daughter1)) {
+ AliDebug(AliLog::kDebug + 2, "Specific cuts for track #1 not passed");
+ return kFALSE;
+ }
+ if (!fCutManager.PassCommonDaughterCuts(daughter1)) {
+ AliDebug(AliLog::kDebug + 2, "Common cuts for track #1 not passed");
+ return kFALSE;
+ }
-//_____________________________________________________________________________
-TString AliRsnPair::GetPairHistName(AliRsnFunction *fcn, TString text)
-{
-//
-// Returns eff. mass histogram name
-//
+ // cuts on track #2 & common
+ if (!fCutManager.PassDaughter2Cuts(daughter2)) {
+ AliDebug(AliLog::kDebug + 2, "Specific cuts for track #2 not passed");
+ return kFALSE;
+ }
+ if (!fCutManager.PassCommonDaughterCuts(daughter2)) {
+ AliDebug(AliLog::kDebug + 2, "Common cuts for track #2 not passed");
+ return kFALSE;
+ }
- TString sName;
- if (fcn)
- {
- sName = fcn->GetFcnName();
- sName += "_";
- }
- sName += GetPairName();
- sName += "_";
- if (fCutMgr) sName += fCutMgr->GetName();
- sName += text;
+ // if pair is accepted, increment counter
+ ++fCount;
- return sName;
+ return kTRUE;
}
//_____________________________________________________________________________
-TString AliRsnPair::GetPairHistTitle(AliRsnFunction *fcn, TString text)
+void AliRsnPair::Compute()
{
//
-// Returns eff. mass histogram title
+// Virtual method to compute pair quantities of interest
//
- TString sTitle;
- if (fcn)
- {
- sTitle = fcn->GetFcnTitle();
- sTitle += " ";
- }
- sTitle += GetPairName();
- sTitle +=" ";
- if (fCutMgr) sTitle += fCutMgr->GetTitle();
- sTitle += text;
-
- return sTitle;
+ AliWarning("Implement this method in derived classes");
}
//_____________________________________________________________________________
-void AliRsnPair::AddFunction(AliRsnFunction *fcn)
+void AliRsnPair::Init(const char* /*prefix*/, TList* /*list*/)
{
//
-// Adds a new computing function
+// Virtual method to compute pair quantities of interest
//
- Int_t size = fFunctions.GetEntries();
- new(fFunctions[size]) AliRsnFunction(*fcn);
-}
-//________________________________________________________________________________________
-Bool_t AliRsnPair::CutPass(AliRsnDaughter *d)
-{
-//
-// Check if the AliRsnDaughter argument pass its cuts.
-// If the cut data member is not initialized for it, returns kTRUE.
-//
- if (!fCutMgr) return kTRUE;
- else return fCutMgr->IsSelected(AliRsnCut::kParticle, d);
-}
-
-//________________________________________________________________________________________
-Bool_t AliRsnPair::CutPass(AliRsnPairParticle *p)
-{
-//
-// Check if the AliRsnPairParticle argument pass its cuts.
-// If the cut data member is not initialized for it, returns kTRUE.
-// In this case, another separate check which could be necessary
-// concerns the possibility that the two tracks are a "true pair" of
-// daughters of the same resonance. If the corresponding flag is set,
-// this further check is done, and the method returns kTRUE only
-// when also this check is passed.
-//
-
- if (!fCutMgr) return kTRUE;
- else return fCutMgr->IsSelected(AliRsnCut::kPair, p);
-}
-
-//________________________________________________________________________________________
-Bool_t AliRsnPair::CutPass(AliRsnEvent *e)
-{
-//
-// Check if the AliRsnEvent argument pass its cuts.
-// If the cut data member is not initialized for it, returns kTRUE.
-//
- if (!fCutMgr) return kTRUE;
- else return fCutMgr->IsSelected(AliRsnCut::kEvent, e);
+ AliWarning("Implement this method in derived classes");
}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff