From: hristov <hristov@f7af4fe6-9843-0410-8265-dc069ae4e863>
Date: Wed, 31 May 2006 19:36:23 +0000 (+0000)
Subject: Additional protection
X-Git-Url: http://git.uio.no/git/?p=u%2Fmrichter%2FAliRoot.git;a=commitdiff_plain;h=8fc1985d8b356638f822bfe9dd70d61004561f58

Additional protection
---

diff --git a/STEER/AliExternalTrackParam.cxx b/STEER/AliExternalTrackParam.cxx
index 4cb5a542b8a..d91056f91f0 100644
--- a/STEER/AliExternalTrackParam.cxx
+++ b/STEER/AliExternalTrackParam.cxx
@@ -171,7 +171,7 @@ CorrectForMaterial(Double_t d,  Double_t x0, Double_t mass) {
   }
 
   //Energy losses************************
-  if (x0!=0.) {
+  if (x0!=0. && beta2<1) {
      d*=x0;
      Double_t dE=0.153e-3/beta2*(log(5940*beta2/(1-beta2)) - beta2)*d;
      if (beta2/(1-beta2)>3.5*3.5)