[u/mrichter/AliRoot.git] / ANALYSIS / AliAODPairBaseCut.cxx

#include "AliAODPairBaseCut.h"

#include "AliTrackPoints.h"
#include "AliClusterMap.h"


ClassImp(AliAODPairBaseCut)
ClassImp(AliAODQInvCut)
ClassImp(AliAODKtCut)
ClassImp(AliAODQSideLCMSCut)
ClassImp(AliAODQOutLCMSCut)
ClassImp(AliAODQLongLCMSCut)
ClassImp(AliAODDeltaECut)
ClassImp(AliAODDeltaPCut)
ClassImp(AliAODDeltaPvectorCut)
ClassImp(AliAODDeltaPhiCut)
ClassImp(AliAODDeltaThetaCut)

/******************************************************************/
ClassImp(AliAODAvSeparationCut)
    
Double_t AliAODAvSeparationCut::GetValue(AliAODPair* pair) const 
{
  //chacks if avarage distance of two tracks is in given range
  AliTrackPoints* tpts1 = pair->Particle1()->GetTPCTrackPoints();
  if ( tpts1 == 0x0)
   {//it could be simulated pair
//     Warning("GetValue","Track 1 does not have Track Points. Pair NOT Passed.");
     return -1.0;
   }

  AliTrackPoints* tpts2 = pair->Particle2()->GetTPCTrackPoints();
  if ( tpts2 == 0x0)
   {
//     Warning("GetValue","Track 2 does not have Track Points. Pair NOT Passed.");
     return -1.0;
   }
   
  return tpts1->AvarageDistance(*tpts2);
}
/******************************************************************/
ClassImp(AliAODSeparationCut)
    
Double_t AliAODSeparationCut::GetValue(AliAODPair* pair) const 
{
  //chacks if avarage distance of two tracks is in given range
  AliTrackPoints* tpts1 = pair->Particle1()->GetTPCTrackPoints();
  if ( tpts1 == 0x0)
   {//it could be simulated pair
//     Warning("GetValue","Track 1 does not have Track Points. Pair NOT Passed.");
     return -1.0;
   }

  AliTrackPoints* tpts2 = pair->Particle2()->GetTPCTrackPoints();
  if ( tpts2 == 0x0)
   {
//     Warning("GetValue","Track 2 does not have Track Points. Pair NOT Passed.");
     return -1.0;
   }
  Float_t x1=0,y1=0,z1=0; 
  Float_t x2=0,y2=0,z2=0;
  
  tpts1->PositionAt(fPoint,x1,y1,z1);
  tpts2->PositionAt(fPoint,x2,y2,z2);
  Double_t dx1 = x1 - x2;
  Double_t dy1 = y1 - y2;
  Double_t dz1 = z1 - z2;
  Double_t d = TMath::Sqrt(dx1*dx1 + dy1*dy1 + dz1*dz1);
  return d;
}
/******************************************************************/

ClassImp(AliAODITSSeparationCut)

Bool_t AliAODITSSeparationCut::Rejected(AliAODPair* pair) const
{
 //Checks if two tracks do not cross first pixels too close to each other
 //If two tracks use the same cluster in pixels they are given
 //the same position what skews theta angles (both are the same)
 //These guys create artificial correlation in non-id analyses
 //which is positive for identical polar angles (Qlong=0) 
 //and negative for a little bit different theta angle (Qlong=epsilon)
 //Such tracks "attracks" each other.
 
  AliTrackPoints* tpts1 = pair->Particle1()->GetITSTrackPoints();
  if ( tpts1 == 0x0)
   {//it could be simulated pair
     Warning("Pass","Track 1 does not have ITS Track Points. Pair NOT Passed.");
     return kTRUE;//reject 
   }

  AliTrackPoints* tpts2 = pair->Particle2()->GetITSTrackPoints();
  if ( tpts2 == 0x0)
   {
     Warning("Pass","Track 2 does not have ITS Track Points. Pair NOT Passed.");
     return kTRUE;//reject 
   }
  Float_t  x1=0.0,y1=0.0,z1=0.0,x2=0.0,y2=0.0,z2=0.0;
  tpts1->PositionAt(fLayer,x1,y1,z1);
  tpts2->PositionAt(fLayer,x2,y2,z2);
  
//  Info("Pass","rphi %f z %f",fMin,fMax);
//  Info("Pass","P1: %f %f %f", x1,y1,z1);
//  Info("Pass","P2: %f %f %f", x2,y2,z2);
  
  Double_t dz = TMath::Abs(z1-z2);
  
  //fMax encodes treshold valaue of distance in Z
  if (dz > fMax) return kFALSE;//pair accepted
  
  Double_t drphi = TMath::Hypot(x1-x2,y1-y2);
  
  //fMin encodes treshold valaue of distance in r-phi
  if (drphi > fMin) return kFALSE;
  
  return kTRUE;//they are too close, rejected
}
/******************************************************************/

ClassImp(AliAODCluterOverlapCut)

Double_t  AliAODCluterOverlapCut::GetValue(AliAODPair* pair) const
{
  //Returns Cluter Overlap Factor
  //It ranges between -0.5 (in all padrows both tracks have cluters) 
  // and 1 (in all padrows one track has cluter and second has not)
  // When Overlap Factor is 1 this pair of tracks in highly probable to be
  // splitted track: one particle that is recontructed twise

  AliClusterMap* cm1 = pair->Particle1()->GetClusterMap();
  if ( cm1 == 0x0)
   {
     Warning("GetValue","Track 1 does not have Cluster Map. Returning -0.5.");
     return -.5;
   }

  AliClusterMap* cm2 = pair->Particle2()->GetClusterMap();
  if ( cm2 == 0x0)
   {
     Warning("GetValue","Track 2 does not have Cluster Map. Returning -0.5.");
     return -.5;
   }
  return cm1->GetOverlapFactor(*cm2);
}
/******************************************************************/
ClassImp(AliAODOutSideSameSignCut)

Bool_t AliAODOutSideSameSignCut::Rejected(AliAODPair *p) const
{
  //returns kTRUE if pair DO NOT meet cut criteria
  
  if ( p->GetQOutLCMS()*p->GetQSideLCMS() > 0 ) 
   {
     return kFALSE;//accpeted
   }

  return kTRUE ;//rejected
}
/******************************************************************/
ClassImp(AliAODOutSideDiffSignCut)

Bool_t AliAODOutSideDiffSignCut::Rejected(AliAODPair *p) const
{
  //returns kTRUE if pair DO NOT meet cut criteria
  
  if ( p->GetQOutLCMS()*p->GetQSideLCMS() > 0 ) 
   {
     return kTRUE;//rejected
   }
  
  return kFALSE;//accepted
}
/******************************************************************/
ClassImp( AliAODLogicalOperPairCut )

AliAODLogicalOperPairCut::AliAODLogicalOperPairCut():
 AliAODPairBaseCut(-10e10,10e10,kHbtPairCutPropNone),
 fFirst(new AliAODDummyBasePairCut),
 fSecond(new AliAODDummyBasePairCut)
{
 //ctor
}
/******************************************************************/

AliAODLogicalOperPairCut::AliAODLogicalOperPairCut(AliAODPairBaseCut* first, AliAODPairBaseCut* second):
 AliAODPairBaseCut(-10e10,10e10,kHbtPairCutPropNone),
 fFirst((first)?(AliAODPairBaseCut*)first->Clone():0x0),
 fSecond((second)?(AliAODPairBaseCut*)second->Clone():0x0)
{
  //ctor
  //note that base cuts are copied, not just pointers assigned
  if ( (fFirst && fSecond) == kFALSE) 
   {
     Fatal("AliAODLogicalOperPairCut","One of parameters is NULL!");
   }
}
/******************************************************************/

AliAODLogicalOperPairCut::~AliAODLogicalOperPairCut()
{
  //destructor
  delete fFirst;
  delete fSecond;
}
/******************************************************************/

Bool_t AliAODLogicalOperPairCut::AliAODDummyBasePairCut::Rejected(AliAODPair* /*pair*/)  const
{
  //checks if particles passes properties defined by this cut
  Warning("Pass","You are using dummy base cut! Probobly some logical cut is not set up properly");
  return kFALSE;//accept
}
/******************************************************************/

void AliAODLogicalOperPairCut::Streamer(TBuffer &b)
{
  // Stream all objects in the array to or from the I/O buffer.
  UInt_t R__s, R__c;
  if (b.IsReading()) 
   {
     delete fFirst;
     delete fSecond;
     fFirst  = 0x0;
     fSecond = 0x0;

     b.ReadVersion(&R__s, &R__c);
     TObject::Streamer(b);
     b >> fFirst;
     b >> fSecond;
     b.CheckByteCount(R__s, R__c,AliAODLogicalOperPairCut::IsA());
   } 
  else 
   {
     R__c = b.WriteVersion(AliAODLogicalOperPairCut::IsA(), kTRUE);
     TObject::Streamer(b);
     b << fFirst;
     b << fSecond;
     b.SetByteCount(R__c, kTRUE);
  }
}

/******************************************************************/
ClassImp(AliAODOrPairCut)

Bool_t AliAODOrPairCut::Rejected(AliAODPair * p) const
{
  //returns true when rejected 
  //AND operation is a little bit misleading but is correct
  //User wants to build logical cuts with natural (positive) logic
  //while ALIAN use inernally reverse (returns true when rejected)
  if (fFirst->Rejected(p) && fSecond->Rejected(p) ) return kTRUE;//rejected (both rejected, returned kTRUE)
  return kFALSE;//accepted, at least one accepted (returned kFALSE)
}
/******************************************************************/

ClassImp(AliAODAndPairCut)

Bool_t AliAODAndPairCut::Rejected(AliAODPair * p)  const
{
  //returns true when rejected 
  //OR operation is a little bit misleading but is correct
  //User wants to build logical cuts with natural (positive) logic
  //while ALIAN use inernally reverse (returns true when rejected)
  if (fFirst->Rejected(p))
   {//first rejected - we reject
     return kTRUE;
   }
  else
   {//first accepted
    if (fSecond->Rejected(p))
     {//second rejected - we reject
       return kTRUE;
     }
   }  
//  if (fFirst->Rejected(p) || fSecond->Rejected(p)) return kTRUE;//rejected (any of two rejected(returned kTRUE) )
  
  return kFALSE;//accepted (both accepted (returned kFALSE))
}
/******************************************************************/
Commit	Line	Data
073745bc	1	#include "AliAODPairBaseCut.h"
	2
	3	#include "AliTrackPoints.h"
	4	#include "AliClusterMap.h"
	5
	6
	7	ClassImp(AliAODPairBaseCut)
	8	ClassImp(AliAODQInvCut)
	9	ClassImp(AliAODKtCut)
	10	ClassImp(AliAODQSideLCMSCut)
	11	ClassImp(AliAODQOutLCMSCut)
	12	ClassImp(AliAODQLongLCMSCut)
b327f095	13	ClassImp(AliAODDeltaECut)
	14	ClassImp(AliAODDeltaPCut)
	15	ClassImp(AliAODDeltaPvectorCut)
	16	ClassImp(AliAODDeltaPhiCut)
	17	ClassImp(AliAODDeltaThetaCut)
073745bc	18
	19	/******************************************************************/
	20	ClassImp(AliAODAvSeparationCut)
	21
	22	Double_t AliAODAvSeparationCut::GetValue(AliAODPair* pair) const
	23	{
	24	//chacks if avarage distance of two tracks is in given range
	25	AliTrackPoints* tpts1 = pair->Particle1()->GetTPCTrackPoints();
	26	if ( tpts1 == 0x0)
	27	{//it could be simulated pair
	28	// Warning("GetValue","Track 1 does not have Track Points. Pair NOT Passed.");
	29	return -1.0;
	30	}
	31
	32	AliTrackPoints* tpts2 = pair->Particle2()->GetTPCTrackPoints();
	33	if ( tpts2 == 0x0)
	34	{
	35	// Warning("GetValue","Track 2 does not have Track Points. Pair NOT Passed.");
	36	return -1.0;
	37	}
	38
	39	return tpts1->AvarageDistance(*tpts2);
	40	}
	41	/******************************************************************/
	42	ClassImp(AliAODSeparationCut)
	43
	44	Double_t AliAODSeparationCut::GetValue(AliAODPair* pair) const
	45	{
	46	//chacks if avarage distance of two tracks is in given range
	47	AliTrackPoints* tpts1 = pair->Particle1()->GetTPCTrackPoints();
	48	if ( tpts1 == 0x0)
	49	{//it could be simulated pair
	50	// Warning("GetValue","Track 1 does not have Track Points. Pair NOT Passed.");
	51	return -1.0;
	52	}
	53
	54	AliTrackPoints* tpts2 = pair->Particle2()->GetTPCTrackPoints();
	55	if ( tpts2 == 0x0)
	56	{
	57	// Warning("GetValue","Track 2 does not have Track Points. Pair NOT Passed.");
	58	return -1.0;
	59	}
	60	Float_t x1=0,y1=0,z1=0;
	61	Float_t x2=0,y2=0,z2=0;
	62
	63	tpts1->PositionAt(fPoint,x1,y1,z1);
	64	tpts2->PositionAt(fPoint,x2,y2,z2);
	65	Double_t dx1 = x1 - x2;
	66	Double_t dy1 = y1 - y2;
	67	Double_t dz1 = z1 - z2;
	68	Double_t d = TMath::Sqrt(dx1dx1 + dy1dy1 + dz1*dz1);
	69	return d;
	70	}
	71	/******************************************************************/
	72
	73	ClassImp(AliAODITSSeparationCut)
	74
	75	Bool_t AliAODITSSeparationCut::Rejected(AliAODPair* pair) const
	76	{
	77	//Checks if two tracks do not cross first pixels too close to each other
	78	//If two tracks use the same cluster in pixels they are given
	79	//the same position what skews theta angles (both are the same)
	80	//These guys create artificial correlation in non-id analyses
	81	//which is positive for identical polar angles (Qlong=0)
82	//and negative for a little bit different theta angle (Qlong=epsilon)
83	//Such tracks "attracks" each other.
84
85	AliTrackPoints* tpts1 = pair->Particle1()->GetITSTrackPoints();
86	if ( tpts1 == 0x0)
87	{//it could be simulated pair
88	Warning("Pass","Track 1 does not have ITS Track Points. Pair NOT Passed.");
89	return kTRUE;//reject
90	}
91
92	AliTrackPoints* tpts2 = pair->Particle2()->GetITSTrackPoints();
93	if ( tpts2 == 0x0)
94	{
95	Warning("Pass","Track 2 does not have ITS Track Points. Pair NOT Passed.");
96	return kTRUE;//reject
97	}
98	Float_t x1=0.0,y1=0.0,z1=0.0,x2=0.0,y2=0.0,z2=0.0;
99	tpts1->PositionAt(fLayer,x1,y1,z1);
100	tpts2->PositionAt(fLayer,x2,y2,z2);
101
102	// Info("Pass","rphi %f z %f",fMin,fMax);
103	// Info("Pass","P1: %f %f %f", x1,y1,z1);
104	// Info("Pass","P2: %f %f %f", x2,y2,z2);
105
106	Double_t dz = TMath::Abs(z1-z2);
107
108	//fMax encodes treshold valaue of distance in Z
109	if (dz > fMax) return kFALSE;//pair accepted
110
111	Double_t drphi = TMath::Hypot(x1-x2,y1-y2);
112
113	//fMin encodes treshold valaue of distance in r-phi
114	if (drphi > fMin) return kFALSE;
115
116	return kTRUE;//they are too close, rejected
117	}
118	/******************************************************************/
119
120	ClassImp(AliAODCluterOverlapCut)
121
122	Double_t AliAODCluterOverlapCut::GetValue(AliAODPair* pair) const
123	{
124	//Returns Cluter Overlap Factor
125	//It ranges between -0.5 (in all padrows both tracks have cluters)
126	// and 1 (in all padrows one track has cluter and second has not)
127	// When Overlap Factor is 1 this pair of tracks in highly probable to be
128	// splitted track: one particle that is recontructed twise
129
130	AliClusterMap* cm1 = pair->Particle1()->GetClusterMap();
131	if ( cm1 == 0x0)
132	{
133	Warning("GetValue","Track 1 does not have Cluster Map. Returning -0.5.");
134	return -.5;
135	}
136
137	AliClusterMap* cm2 = pair->Particle2()->GetClusterMap();
138	if ( cm2 == 0x0)
139	{
140	Warning("GetValue","Track 2 does not have Cluster Map. Returning -0.5.");
141	return -.5;
142	}
143	return cm1->GetOverlapFactor(*cm2);
144	}
145	/******************************************************************/
146	ClassImp(AliAODOutSideSameSignCut)
147
148	Bool_t AliAODOutSideSameSignCut::Rejected(AliAODPair *p) const
149	{
150	//returns kTRUE if pair DO NOT meet cut criteria
151
152	if ( p->GetQOutLCMS()*p->GetQSideLCMS() > 0 )
153	{
154	return kFALSE;//accpeted
155	}
156
157	return kTRUE ;//rejected
158	}
159	/******************************************************************/
160	ClassImp(AliAODOutSideDiffSignCut)
161
162	Bool_t AliAODOutSideDiffSignCut::Rejected(AliAODPair *p) const
163	{
164	//returns kTRUE if pair DO NOT meet cut criteria
165
166	if ( p->GetQOutLCMS()*p->GetQSideLCMS() > 0 )
167	{
168	return kTRUE;//rejected
169	}
170
171	return kFALSE;//accepted
172	}
173	/******************************************************************/
174	ClassImp( AliAODLogicalOperPairCut )
175
176	AliAODLogicalOperPairCut::AliAODLogicalOperPairCut():
177	AliAODPairBaseCut(-10e10,10e10,kHbtPairCutPropNone),
178	fFirst(new AliAODDummyBasePairCut),
179	fSecond(new AliAODDummyBasePairCut)
180	{
181	//ctor
182	}
183	/******************************************************************/
184
185	AliAODLogicalOperPairCut::AliAODLogicalOperPairCut(AliAODPairBaseCut* first, AliAODPairBaseCut* second):
186	AliAODPairBaseCut(-10e10,10e10,kHbtPairCutPropNone),
187	fFirst((first)?(AliAODPairBaseCut*)first->Clone():0x0),
188	fSecond((second)?(AliAODPairBaseCut*)second->Clone():0x0)
189	{
190	//ctor
191	//note that base cuts are copied, not just pointers assigned
192	if ( (fFirst && fSecond) == kFALSE)
193	{
194	Fatal("AliAODLogicalOperPairCut","One of parameters is NULL!");
195	}
196	}
197	/******************************************************************/
198
199	AliAODLogicalOperPairCut::~AliAODLogicalOperPairCut()
200	{
201	//destructor
202	delete fFirst;
203	delete fSecond;
204	}
205	/******************************************************************/
206
207	Bool_t AliAODLogicalOperPairCut::AliAODDummyBasePairCut::Rejected(AliAODPair* /pair/) const
208	{
209	//checks if particles passes properties defined by this cut
210	Warning("Pass","You are using dummy base cut! Probobly some logical cut is not set up properly");
211	return kFALSE;//accept
212	}
213	/******************************************************************/
214
215	void AliAODLogicalOperPairCut::Streamer(TBuffer &b)
216	{
217	// Stream all objects in the array to or from the I/O buffer.
218	UInt_t R__s, R__c;
219	if (b.IsReading())
220	{
221	delete fFirst;
222	delete fSecond;
223	fFirst = 0x0;
224	fSecond = 0x0;
225
226	b.ReadVersion(&R__s, &R__c);
227	TObject::Streamer(b);
228	b >> fFirst;
229	b >> fSecond;
230	b.CheckByteCount(R__s, R__c,AliAODLogicalOperPairCut::IsA());
231	}
232	else
233	{
234	R__c = b.WriteVersion(AliAODLogicalOperPairCut::IsA(), kTRUE);
235	TObject::Streamer(b);
236	b << fFirst;
237	b << fSecond;
238	b.SetByteCount(R__c, kTRUE);
239	}
240	}
241
242	/******************************************************************/
243	ClassImp(AliAODOrPairCut)
244
245	Bool_t AliAODOrPairCut::Rejected(AliAODPair * p) const
246	{
247	//returns true when rejected
248	//AND operation is a little bit misleading but is correct
249	//User wants to build logical cuts with natural (positive) logic
250	//while ALIAN use inernally reverse (returns true when rejected)
251	if (fFirst->Rejected(p) && fSecond->Rejected(p) ) return kTRUE;//rejected (both rejected, returned kTRUE)
252	return kFALSE;//accepted, at least one accepted (returned kFALSE)
253	}
254	/******************************************************************/
255
256	ClassImp(AliAODAndPairCut)
257
258	Bool_t AliAODAndPairCut::Rejected(AliAODPair * p) const
259	{
260	//returns true when rejected
261	//OR operation is a little bit misleading but is correct
262	//User wants to build logical cuts with natural (positive) logic
263	//while ALIAN use inernally reverse (returns true when rejected)
e4fc613d	264	if (fFirst->Rejected(p))
	265	{//first rejected - we reject
	266	return kTRUE;
	267	}
	268	else
	269	{//first accepted
	270	if (fSecond->Rejected(p))
	271	{//second rejected - we reject
	272	return kTRUE;
	273	}
	274	}
	275	// if (fFirst->Rejected(p) \|\| fSecond->Rejected(p)) return kTRUE;//rejected (any of two rejected(returned kTRUE) )
	276
073745bc	277	return kFALSE;//accepted (both accepted (returned kFALSE))
	278	}
	279	/******************************************************************/