From fb17de1f9254602eec793400b7ee86002cbff781 Mon Sep 17 00:00:00 2001
From: cvetan <cvetan@f7af4fe6-9843-0410-8265-dc069ae4e863>
Date: Wed, 18 Jun 2008 16:30:42 +0000
Subject: [PATCH] Protection against zero field (Alex)

---
 TRD/AliTRDtrackV1.cxx | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/TRD/AliTRDtrackV1.cxx b/TRD/AliTRDtrackV1.cxx
index 9aac44b4da2..8f488d8466c 100644
--- a/TRD/AliTRDtrackV1.cxx
+++ b/TRD/AliTRDtrackV1.cxx
@@ -140,7 +140,8 @@ AliTRDtrackV1::AliTRDtrackV1(AliTRDseedV1 *trklts, const Double_t p[5], const Do
   // 2. dQdl calculation
   //
 
-  Double_t cnv   = 1.0 / (GetBz() * kB2C);
+  Double_t cnv = GetBz() < 1.e-5 ? 1.e5 : 1.0 / (GetBz() * kB2C);
+  //  Double_t cnv   = 1.0 / (GetBz() * kB2C);
 
   Double_t pp[5] = { p[0]    
                    , p[1]
-- 
2.39.3