+++ /dev/null
-///////////////////////////////////////////////////////////////////////////
-// //
-// This is an analysis which calculated the background from like sign //
-// pairs in the same event //
-// //
-///////////////////////////////////////////////////////////////////////////
-
-#include "AliFemtoLikeSignAnalysis.h"
-#include "AliFemtoParticleCollection.h"
-#include "AliFemtoPicoEventCollectionVector.h"
-#include "AliFemtoPicoEventCollectionVectorHideAway.h"
-
-#ifdef __ROOT__
-ClassImp(AliFemtoLikeSignAnalysis)
-#endif
-
-// this little function used to apply ParticleCuts (TrackCuts or V0Cuts) and fill ParticleCollections of picoEvent
-// it is called from AliFemtoSimpleAnalysis::ProcessEvent()
-
-
-void FillHbtParticleCollection(AliFemtoParticleCut* partCut,
- AliFemtoEvent* hbtEvent,
- AliFemtoParticleCollection* partCollection,
- bool performSharedDaughterCut=kFALSE);
-
-//____________________________
-AliFemtoLikeSignAnalysis::AliFemtoLikeSignAnalysis(unsigned int bins, double min, double max) :
- AliFemtoSimpleAnalysis(),
- fVertexBins(0),
- fOverFlow(0),
- fUnderFlow(0)
-{
- // standard constructor
- fVertexBins = bins;
- fVertexZ[0] = min;
- fVertexZ[1] = max;
- fUnderFlow = 0;
- fOverFlow = 0;
- if (fMixingBuffer) delete fMixingBuffer;
- fPicoEventCollectionVectorHideAway = new AliFemtoPicoEventCollectionVectorHideAway(fVertexBins,fVertexZ[0],fVertexZ[1]);
- /* no-op */
-}
-//____________________________
-AliFemtoLikeSignAnalysis::AliFemtoLikeSignAnalysis(const AliFemtoLikeSignAnalysis& a) :
- AliFemtoSimpleAnalysis(a) ,
- fVertexBins(0),
- fOverFlow(0),
- fUnderFlow(0)
-{
- // copy constructor
- fVertexBins = a.fVertexBins;
- fVertexZ[0] = a.fVertexZ[0];
- fVertexZ[1] = a.fVertexZ[1];
- fUnderFlow = 0;
- fOverFlow = 0;
- if (fMixingBuffer) delete fMixingBuffer;
- fPicoEventCollectionVectorHideAway = new AliFemtoPicoEventCollectionVectorHideAway(fVertexBins,fVertexZ[0],fVertexZ[1]);
- }
-AliFemtoLikeSignAnalysis& AliFemtoLikeSignAnalysis::operator=(const AliFemtoLikeSignAnalysis& OriginalAnalysis)
-{
- if (this != &OriginalAnalysis) {
- fVertexBins = OriginalAnalysis.fVertexBins;
- fVertexZ[0] = OriginalAnalysis.fVertexZ[0];
- fVertexZ[1] = OriginalAnalysis.fVertexZ[1];
- fUnderFlow = 0;
- fOverFlow = 0;
- if (fMixingBuffer) delete fMixingBuffer;
- if (fPicoEventCollectionVectorHideAway) delete fPicoEventCollectionVectorHideAway;
- fPicoEventCollectionVectorHideAway = new AliFemtoPicoEventCollectionVectorHideAway(fVertexBins,fVertexZ[0],fVertexZ[1]);
- }
-
- return *this;
-
-}
-
-//____________________________
-AliFemtoLikeSignAnalysis::~AliFemtoLikeSignAnalysis(){
- // destructor
- delete fPicoEventCollectionVectorHideAway; fPicoEventCollectionVectorHideAway=0;
-}
-//____________________________
-AliFemtoString AliFemtoLikeSignAnalysis::Report()
-{
- // prepare report
- char tCtemp[200];
- cout << "AliFemtoLikeSignAnalysis - constructing Report..."<<endl;
- AliFemtoString temp = "-----------\nHbt Analysis Report:\n";
- snprintf(tCtemp , 200, "Events are mixed in %d bins in the range %E cm to %E cm.\n",fVertexBins,fVertexZ[0],fVertexZ[1]);
- temp += tCtemp;
- snprintf(tCtemp , 200, "Events underflowing: %d\n",fUnderFlow);
- temp += tCtemp;
- snprintf(tCtemp , 200, "Events overflowing: %d\n",fOverFlow);
- temp += tCtemp;
- snprintf(tCtemp , 200, "Now adding AliFemtoSimpleAnalysis(base) Report\n");
- temp += tCtemp;
- temp += "Adding AliFemtoSimpleAnalysis(base) Report now:\n";
- temp += AliFemtoSimpleAnalysis::Report();
- temp += "-------------\n";
- AliFemtoString returnThis=temp;
- return returnThis;
-}
-//_________________________
-void AliFemtoLikeSignAnalysis::ProcessEvent(const AliFemtoEvent* hbtEvent) {
- // perform all the analysis tasks for a single event
- // get right mixing buffer
- double vertexZ = hbtEvent->PrimVertPos().z();
- fMixingBuffer = fPicoEventCollectionVectorHideAway->PicoEventCollection(vertexZ);
- if (!fMixingBuffer) {
- if ( vertexZ < fVertexZ[0] ) fUnderFlow++;
- if ( vertexZ > fVertexZ[1] ) fOverFlow++;
- return;
- }
-
- // startup for EbyE
- EventBegin(hbtEvent);
- // event cut and event cut monitor
- bool tmpPassEvent = fEventCut->Pass(hbtEvent);
- fEventCut->FillCutMonitor(hbtEvent, tmpPassEvent);
- if (tmpPassEvent) {
- fNeventsProcessed++;
- cout << "AliFemtoLikeSignAnalysis::ProcessEvent() - " << hbtEvent->TrackCollection()->size();
- cout << " #track=" << hbtEvent->TrackCollection()->size();
- // OK, analysis likes the event-- build a pico event from it, using tracks the analysis likes...
- AliFemtoPicoEvent* picoEvent = new AliFemtoPicoEvent; // this is what we will make pairs from and put in Mixing Buffer
- FillHbtParticleCollection(fFirstParticleCut,(AliFemtoEvent*)hbtEvent,picoEvent->FirstParticleCollection());
- if ( !(AnalyzeIdenticalParticles()) )
- FillHbtParticleCollection(fSecondParticleCut,(AliFemtoEvent*)hbtEvent,picoEvent->SecondParticleCollection());
- cout <<" #particles in First, Second Collections: " <<
- picoEvent->FirstParticleCollection()->size() << " " <<
- picoEvent->SecondParticleCollection()->size() << endl;
-
- if (picoEvent->SecondParticleCollection()->size()*picoEvent->FirstParticleCollection()->size()==0) {
- delete picoEvent;
- cout << "AliFemtoLikeSignAnalysis - picoEvent deleted due to empty collection " <<endl;
- return;
- }
- // OK, pico event is built
- // make real pairs...
-
- // Fabrice points out that we do not need to keep creating/deleting pairs all the time
- // We only ever need ONE pair, and we can just keep changing internal pointers
- // this should help speed things up
- AliFemtoPair* tThePair = new AliFemtoPair;
-
- AliFemtoParticleIterator tPartIter1;
- AliFemtoParticleIterator tPartIter2;
- AliFemtoCorrFctnIterator tCorrFctnIter;
- AliFemtoParticleIterator tStartOuterLoop = picoEvent->FirstParticleCollection()->begin(); // always
- AliFemtoParticleIterator tEndOuterLoop = picoEvent->FirstParticleCollection()->end(); // will be one less if identical
- AliFemtoParticleIterator tStartInnerLoop;
- AliFemtoParticleIterator tEndInnerLoop;
- if (AnalyzeIdenticalParticles()) { // only use First collection
- tEndOuterLoop--; // outer loop goes to next-to-last particle in First collection
- tEndInnerLoop = picoEvent->FirstParticleCollection()->end() ; // inner loop goes to last particle in First collection
- }
- else { // nonidentical - loop over First and Second collections
- tStartInnerLoop = picoEvent->SecondParticleCollection()->begin(); // inner loop starts at first particle in Second collection
- tEndInnerLoop = picoEvent->SecondParticleCollection()->end() ; // inner loop goes to last particle in Second collection
- }
- // real pairs
- for (tPartIter1=tStartOuterLoop;tPartIter1!=tEndOuterLoop;tPartIter1++){
- if (AnalyzeIdenticalParticles()){
- tStartInnerLoop = tPartIter1;
- tStartInnerLoop++;
- }
- tThePair->SetTrack1(*tPartIter1);
- for (tPartIter2 = tStartInnerLoop; tPartIter2!=tEndInnerLoop;tPartIter2++){
- tThePair->SetTrack2(*tPartIter2);
- // The following lines have to be uncommented if you want pairCutMonitors
- // they are not in for speed reasons
- // bool tmpPassPair = mPairCut->Pass(tThePair);
- // mPairCut->FillCutMonitor(tThePair, tmpPassPair);
- // if ( tmpPassPair ) {
- if (fPairCut->Pass(tThePair)){
- for (tCorrFctnIter=fCorrFctnCollection->begin();
- tCorrFctnIter!=fCorrFctnCollection->end();tCorrFctnIter++){
- AliFemtoLikeSignCorrFctn* tCorrFctn = dynamic_cast<AliFemtoLikeSignCorrFctn*>(*tCorrFctnIter);
- if (tCorrFctn) tCorrFctn->AddRealPair(tThePair);
- }
- } // if passed pair cut
- } // loop over second particle
- } // loop over first particle
-#ifdef STHBTDEBUG
- cout << "AliFemtoLikeSignAnalysis::ProcessEvent() - reals done" << endl;
-#endif
-
- AliFemtoParticleIterator nextIter;
- AliFemtoParticleIterator prevIter;
-
- // like sign first partilce collection pairs
- prevIter = tEndOuterLoop;
- prevIter--;
- for (tPartIter1=tStartOuterLoop;tPartIter1!=prevIter;tPartIter1++){
- tThePair->SetTrack1(*tPartIter1);
- nextIter = tPartIter1;
- nextIter++;
- for (tPartIter2 = nextIter; tPartIter2!=tEndOuterLoop;tPartIter2++){
- tThePair->SetTrack2(*tPartIter2);
- // The following lines have to be uncommented if you want pairCutMonitors
- // they are not in for speed reasons
- // bool tmpPassPair = mPairCut->Pass(tThePair);
- // mPairCut->FillCutMonitor(tThePair, tmpPassPair);
- // if ( tmpPassPair ) {
- if (fPairCut->Pass(tThePair)){
- for (tCorrFctnIter=fCorrFctnCollection->begin();
- tCorrFctnIter!=fCorrFctnCollection->end();tCorrFctnIter++){
- AliFemtoLikeSignCorrFctn* tCorrFctn = dynamic_cast<AliFemtoLikeSignCorrFctn*>(*tCorrFctnIter);
- if (tCorrFctn) tCorrFctn->AddLikeSignPositivePair(tThePair);
- }
- } // if passed pair cut
- } // loop over second particle
- } // loop over first particle
-#ifdef STHBTDEBUG
- cout << "AliFemtoLikeSignAnalysis::ProcessEvent() - like sign first collection done" << endl;
-#endif
- // like sign second partilce collection pairs
- prevIter = tEndInnerLoop;
- prevIter--;
- for (tPartIter1=tStartInnerLoop;tPartIter1!=prevIter;tPartIter1++){
- tThePair->SetTrack1(*tPartIter1);
- nextIter = tPartIter1;
- nextIter++;
- for (tPartIter2 = nextIter; tPartIter2!=tEndInnerLoop;tPartIter2++){
- tThePair->SetTrack2(*tPartIter2);
- // The following lines have to be uncommented if you want pairCutMonitors
- // they are not in for speed reasons
- // bool tmpPassPair = mPairCut->Pass(tThePair);
- // mPairCut->FillCutMonitor(tThePair, tmpPassPair);
- // if ( tmpPassPair ) {
- if (fPairCut->Pass(tThePair)){
- for (tCorrFctnIter=fCorrFctnCollection->begin();
- tCorrFctnIter!=fCorrFctnCollection->end();tCorrFctnIter++){
- AliFemtoLikeSignCorrFctn* tCorrFctn = dynamic_cast<AliFemtoLikeSignCorrFctn*>(*tCorrFctnIter);
- if (tCorrFctn) tCorrFctn->AddLikeSignNegativePair(tThePair);
- }
- } // if passed pair cut
- } // loop over second particle
- } // loop over first particle
-#ifdef STHBTDEBUG
- cout << "AliFemtoLikeSignAnalysis::ProcessEvent() - like sign second collection done" << endl;
-#endif
-
- if (MixingBufferFull()){
-#ifdef STHBTDEBUG
- cout << "Mixing Buffer is full - lets rock and roll" << endl;
-#endif
- }
- else {
- cout << "Mixing Buffer not full -gotta wait " << MixingBuffer()->size() << endl;
- }
- if (MixingBufferFull()){
- tStartOuterLoop = picoEvent->FirstParticleCollection()->begin();
- tEndOuterLoop = picoEvent->FirstParticleCollection()->end();
- AliFemtoPicoEvent* storedEvent;
- AliFemtoPicoEventIterator picoEventIter;
- for (picoEventIter=MixingBuffer()->begin();picoEventIter!=MixingBuffer()->end();picoEventIter++){
- storedEvent = *picoEventIter;
- if (AnalyzeIdenticalParticles()){
- tStartInnerLoop = storedEvent->FirstParticleCollection()->begin();
- tEndInnerLoop = storedEvent->FirstParticleCollection()->end();
- }
- else{
- tStartInnerLoop = storedEvent->SecondParticleCollection()->begin();
- tEndInnerLoop = storedEvent->SecondParticleCollection()->end();
- }
- for (tPartIter1=tStartOuterLoop;tPartIter1!=tEndOuterLoop;tPartIter1++){
- tThePair->SetTrack1(*tPartIter1);
- for (tPartIter2=tStartInnerLoop;tPartIter2!=tEndInnerLoop;tPartIter2++){
- tThePair->SetTrack2(*tPartIter2);
- // testing... cout << "tThePair defined... going to pair cut... ";
- if (fPairCut->Pass(tThePair)){
- // testing... cout << " tThePair passed PairCut... ";
- for (tCorrFctnIter=fCorrFctnCollection->begin();
- tCorrFctnIter!=fCorrFctnCollection->end();tCorrFctnIter++){
- AliFemtoLikeSignCorrFctn* tCorrFctn = dynamic_cast<AliFemtoLikeSignCorrFctn*>(*tCorrFctnIter);
- if (tCorrFctn) {
- tCorrFctn->AddMixedPair(tThePair);
- //cout << " tThePair has been added to MixedPair method " << endl;
- }
- }
- } // if passed pair cut
- } // loop over second particle
- } // loop over first particle
- } // loop over pico-events stored in Mixing buffer
- // Now get rid of oldest stored pico-event in buffer.
- // This means (1) delete the event from memory, (2) "pop" the pointer to it from the MixingBuffer
- delete MixingBuffer()->back();
- MixingBuffer()->pop_back();
- } // if mixing buffer is full
- delete tThePair;
- MixingBuffer()->push_front(picoEvent); // store the current pico-event in buffer
- } // if currentEvent is accepted by currentAnalysis
- EventEnd(hbtEvent); // cleanup for EbyE
- // cout << "AliFemtoLikeSignAnalysis::ProcessEvent() - return to caller ... " << endl;
-}
-
-
-
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff