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Fixed a bug on retrieving TPC inner param
authorpulvir <pulvir@f7af4fe6-9843-0410-8265-dc069ae4e863>
Mon, 11 Jan 2010 15:37:02 +0000 (15:37 +0000)
committerpulvir <pulvir@f7af4fe6-9843-0410-8265-dc069ae4e863>
Mon, 11 Jan 2010 15:37:02 +0000 (15:37 +0000)
PWG2/RESONANCES/AliRsnCutBetheBloch.cxx patch | blob | blame | history

diff --git a/PWG2/RESONANCES/AliRsnCutBetheBloch.cxx b/PWG2/RESONANCES/AliRsnCutBetheBloch.cxx
index 256a9f112a545bf6af7af6b48b88760cb22b7dff..4ea75ef84fc2c1dfaa43d2c7a6eed3a8168b5384 100644 (file)
--- a/PWG2/RESONANCES/AliRsnCutBetheBloch.cxx
+++ b/PWG2/RESONANCES/AliRsnCutBetheBloch.cxx
@@ -74,7 +74,8 @@ Double_t AliRsnCutBetheBloch::BetheBloch(AliRsnDaughter * const trackRef)
   AliPID pid;
   Double_t mass = pid.ParticleMass(fType);
 
-  // get the track momentum at the inner wall of TPC
+  // get the track momentum at the inner wall of TPC: if absent cut is not passed
+  if (!trackRef->GetRefESD()->GetInnerParam()) return 1000000.0;
   AliExternalTrackParam track(*trackRef->GetRefESD()->GetInnerParam());
 
   Double_t betaGamma = track.P() / mass;