From: hristov <hristov@f7af4fe6-9843-0410-8265-dc069ae4e863>
Date: Wed, 16 Mar 2005 08:48:01 +0000 (+0000)
Subject: More inline functions available to the user (B.Hippolyte)
X-Git-Url: http://git.uio.no/git/?a=commitdiff_plain;h=a98dba454f46214d47322d302b9415426b01f719;p=u%2Fmrichter%2FAliRoot.git

More inline functions available to the user (B.Hippolyte)
---

diff --git a/ANALYSIS/AliAODv0.h b/ANALYSIS/AliAODv0.h
index 5ff5f9b5daa..ec4da59738c 100644
--- a/ANALYSIS/AliAODv0.h
+++ b/ANALYSIS/AliAODv0.h
@@ -14,6 +14,10 @@
 //-------------------------------------------------------------------------
 
 #include <TObject.h>
+#include <TDatabasePDG.h>
+
+#define MASS(PID)  TDatabasePDG::Instance()->GetParticle((PID))->Mass()
+#define MASS2(PID) MASS((PID))*MASS((PID))
 
 class AliESD;
 class AliESDVertex;
@@ -32,6 +36,8 @@ public:
   Double_t DecayVertexV0X() const;
   Double_t DecayVertexV0Y() const;
   Double_t DecayVertexV0Z() const;
+
+  Double_t DecayLengthV0() const;
                      
   Double_t DcaV0Daughters() const;
   Double_t DcaV0ToPrimVertex() const;
@@ -62,6 +68,18 @@ public:
   Double_t MomNegAlongV0() const;
   Double_t AlphaV0() const;
   Double_t PtArmV0() const;
+  Double_t EPosProton() const;
+  Double_t ENegProton() const;
+  Double_t EPosPion() const;
+  Double_t ENegPion() const;
+  Double_t ELambda() const;
+  Double_t EK0Short() const;
+  Double_t MassLambda() const;
+  Double_t MassAntiLambda() const;
+  Double_t MassK0Short() const;
+  Double_t RapK0Short() const;
+  Double_t RapLambda() const;
+
 
 protected:
   Double_t fDecayVertexV0X;       // decay vertex of V0 along X
@@ -91,6 +109,17 @@ inline Double_t AliAODv0::DecayVertexV0X() const {return fDecayVertexV0X;}
 inline Double_t AliAODv0::DecayVertexV0Y() const {return fDecayVertexV0Y;}
 inline Double_t AliAODv0::DecayVertexV0Z() const {return fDecayVertexV0Z;}
 
+inline Double_t AliAODv0::DecayLengthV0() const {
+  if (fEvent&&fEvent->GetVertex()){
+    Double_t tPrimaryVertexPosition[3];
+    fEvent->GetVertex()->GetXYZ(tPrimaryVertexPosition);
+    return ::sqrt(::pow(DecayVertexV0X() - tPrimaryVertexPosition[0],2) +
+		  ::pow(DecayVertexV0Y() - tPrimaryVertexPosition[1],2) +
+		  ::pow(DecayVertexV0Z() - tPrimaryVertexPosition[2],2));
+  }
+  return 0.;
+}
+
 inline Double_t AliAODv0::DcaV0Daughters() const {return fDcaV0Daughters;}
 inline Double_t AliAODv0::DcaV0ToPrimVertex() const {return fDcaV0ToPrimVertex;}
 inline Double_t AliAODv0::DcaPosToPrimVertex() const {return fDcaPosToPrimVertex;}
@@ -149,6 +178,54 @@ inline Double_t AliAODv0::PtArmV0() const {
   return ::sqrt(Ptot2Pos()-MomPosAlongV0()*MomPosAlongV0());
 }
 
+inline Double_t AliAODv0::EPosProton() const {
+  return ::sqrt(Ptot2Pos()+MASS2("proton"));
+}
+
+inline Double_t AliAODv0::ENegProton() const {
+  return ::sqrt(Ptot2Neg()+MASS2("antiproton"));
+}
+
+inline Double_t AliAODv0::EPosPion() const {
+  return ::sqrt(Ptot2Pos()+MASS2("pi+"));
+}
+
+inline Double_t AliAODv0::ENegPion() const {
+  return ::sqrt(Ptot2Neg()+MASS2("pi-"));
+}
+
+inline Double_t AliAODv0::ELambda() const {
+  return ::sqrt(Ptot2V0()+MASS2("Lambda0"));
+}
+
+inline Double_t AliAODv0::EK0Short() const {
+  return ::sqrt(Ptot2V0()+MASS2("K_S0"));
+}
+
+inline Double_t AliAODv0::MassLambda() const {
+  return ::sqrt(::pow(EPosProton()+ENegPion(),2)-Ptot2V0());
+}
+
+inline Double_t AliAODv0::MassAntiLambda() const {
+  return ::sqrt(::pow(ENegProton()+EPosPion(),2)-Ptot2V0());
+}
+
+inline Double_t AliAODv0::MassK0Short() const {
+  return ::sqrt(::pow(EPosPion()+ENegPion(),2)-Ptot2V0());
+}
+
+inline Double_t AliAODv0::RapK0Short() const {
+  Double_t ek0 = EK0Short();
+  Double_t mMomV0Z = MomV0Z();
+  return 0.5*::log((ek0+mMomV0Z)/(ek0-mMomV0Z));
+}
+
+inline Double_t AliAODv0::RapLambda() const {
+  Double_t eLambda = ELambda();
+  Double_t mMomV0Z = MomV0Z();
+  return 0.5*::log((eLambda+mMomV0Z)/(eLambda-mMomV0Z));
+}
+
 #endif