Updated ITS PID parameters for MC tracks + usage of momentum at the vertex to paramet...

[u/mrichter/AliRoot.git] / STEER / AliTPCPIDResponse.cxx

diff --git a/STEER/AliTPCPIDResponse.cxx b/STEER/AliTPCPIDResponse.cxx
index 04d64ae21cb6146d010d08bbf26cf8d16c61f73a..0ea017258849ab78031b45595132ebccf3ed6e11 100644 (file)
--- a/STEER/AliTPCPIDResponse.cxx
+++ b/STEER/AliTPCPIDResponse.cxx
@@ -32,11 +32,11 @@ AliTPCPIDResponse::AliTPCPIDResponse():
     fMIP(50.),
     fRes0(0.07),
     fResN2(0.),
-    fKp1(0.76176e-1),
-    fKp2(10.632),
-    fKp3(0.13279e-4),
-    fKp4(1.8631),
-    fKp5(1.9479)
+    fKp1(0.0283086),
+    fKp2(2.63394e+01),
+    fKp3(5.04114e-11),
+    fKp4(2.12543),
+    fKp5(4.88663)
 {
   //
   //  The default constructor
@@ -48,11 +48,11 @@ AliTPCPIDResponse::AliTPCPIDResponse(Double_t *param):
     fMIP(param[0]),
     fRes0(param[1]),
     fResN2(param[2]),
-    fKp1(0.76176e-1),
-    fKp2(10.632),
-    fKp3(0.13279e-4),
-    fKp4(1.8631),
-    fKp5(1.9479)
+    fKp1(0.0283086),
+    fKp2(2.63394e+01),
+    fKp3(5.04114e-11),
+    fKp4(2.12543),
+    fKp5(4.88663)
 {
   //
   //  The main constructor
@@ -71,7 +71,7 @@ Double_t AliTPCPIDResponse::Bethe(Double_t betaGamma) const {
   //           1. for simulation
   //           2. for reconstructed PID
   //
-  const Float_t kmeanCorrection =0.1;
+  //  const Float_t kmeanCorrection =0.1;
   Double_t bb=
     AliExternalTrackParam::BetheBlochAleph(betaGamma,fKp1,fKp2,fKp3,fKp4,fKp5);
   return bb*fMIP;