From 6839b65914a54fe2758467b44b2b5d5269ebd884 Mon Sep 17 00:00:00 2001
From: zampolli <chiara.zampolli@cern.ch>
Date: Tue, 18 Nov 2014 18:19:53 +0100
Subject: [PATCH] Flag added to allow to switch off the new feature of TOF
 mismatch in the probability computation (F. Noferini)

---
 STEER/STEERBase/AliPIDResponse.cxx | 9 ++++++---
 STEER/STEERBase/AliPIDResponse.h   | 5 ++++-
 2 files changed, 10 insertions(+), 4 deletions(-)

diff --git a/STEER/STEERBase/AliPIDResponse.cxx b/STEER/STEERBase/AliPIDResponse.cxx
index 5c8e5a4c220..cfd7ef88db6 100644
--- a/STEER/STEERBase/AliPIDResponse.cxx
+++ b/STEER/STEERBase/AliPIDResponse.cxx
@@ -98,7 +98,8 @@ fHMPIDPIDParams(NULL),
 fEMCALPIDParams(NULL),
 fCurrentEvent(NULL),
 fCurrCentrality(0.0),
-fBeamTypeNum(kPP)
+fBeamTypeNum(kPP),
+fNoTOFmism(kFALSE)
 {
   //
   // default ctor
@@ -165,7 +166,8 @@ fHMPIDPIDParams(NULL),
 fEMCALPIDParams(NULL),
 fCurrentEvent(NULL),
 fCurrCentrality(0.0),
-fBeamTypeNum(kPP)
+fBeamTypeNum(kPP),
+fNoTOFmism(other.fNoTOFmism)
 {
   //
   // copy ctor
@@ -222,6 +224,7 @@ AliPIDResponse& AliPIDResponse::operator=(const AliPIDResponse &other)
     fTOFPIDParams=NULL;
     fHMPIDPIDParams=NULL;
     fCurrentEvent=other.fCurrentEvent;
+    fNoTOFmism = other.fNoTOFmism;
 
   }
   return *this;
@@ -2412,7 +2415,7 @@ AliPIDResponse::EDetPidStatus AliPIDResponse::GetComputeTOFProbability  (const A
   // isMC --> fIsMC
   Float_t pt = track->Pt();
   Float_t mismPropagationFactor[10] = {1.,1.,1.,1.,1.,1.,1.,1.,1.,1.};
-  if(! kNoMism){ // this flag allows to disable mismatch for iterative procedure to get priors
+  if(! (kNoMism | fNoTOFmism)){ // this flag allows to disable mismatch for iterative procedure to get priors
     mismPropagationFactor[3] = 1 + TMath::Exp(1 - 1.12*pt);// it has to be alligned with the one in AliPIDCombined
     mismPropagationFactor[4] = 1 + 1./(4.71114 - 5.72372*pt + 2.94715*pt*pt);// it has to be alligned with the one in AliPIDCombined
     
diff --git a/STEER/STEERBase/AliPIDResponse.h b/STEER/STEERBase/AliPIDResponse.h
index 89acd222b0e..130820a2e37 100644
--- a/STEER/STEERBase/AliPIDResponse.h
+++ b/STEER/STEERBase/AliPIDResponse.h
@@ -189,6 +189,7 @@ public:
 
   EBeamType GetBeamType() const {return fBeamTypeNum;};
 
+  void SetNoTOFmism(Bool_t value=kTRUE){fNoTOFmism=value;};
 
 protected:
   AliITSPIDResponse   fITSResponse;    //PID response function of the ITS
@@ -259,6 +260,8 @@ private:
 
   EBeamType fBeamTypeNum;              //! beam type enum 
   
+  Bool_t fNoTOFmism;                   //! flag to switch off the TOF mismatch in the TOF weights (to check with old aliroot version)
+
   void ExecNewRun();
   
   //
@@ -341,7 +344,7 @@ private:
   EDetPidStatus GetPHOSPIDStatus(const AliVTrack *track) const;
   EDetPidStatus GetEMCALPIDStatus(const AliVTrack *track) const;
 
-  ClassDef(AliPIDResponse, 13);  //PID response handling
+  ClassDef(AliPIDResponse, 14);  //PID response handling
 };
 
 #endif
-- 
2.43.0