X-Git-Url: http://git.uio.no/git/?a=blobdiff_plain;ds=sidebyside;f=STEER%2FSTEERBase%2FAliMagF.cxx;h=54fcb2dc1a67be195e6ee3812718bc39b83c11b1;hb=6e10208a4e5ae49399d4538e65f11eca5e9edabf;hp=363841a47caac510b43c83de7e258c4a2b4ec7de;hpb=339fbe234cc18fb2789f70c6db88cc110e0848ce;p=u%2Fmrichter%2FAliRoot.git

diff --git a/STEER/STEERBase/AliMagF.cxx b/STEER/STEERBase/AliMagF.cxx
index 363841a47ca..54fcb2dc1a6 100644
--- a/STEER/STEERBase/AliMagF.cxx
+++ b/STEER/STEERBase/AliMagF.cxx
@@ -263,7 +263,9 @@ void AliMagF::InitMachineField(BeamType_t btype, Double_t benergy)
   //
   double rigScale = benergy/7000.;   // scale according to ratio of E/Enominal
   // for ions assume PbPb (with energy provided per nucleon) and account for A/Z
-  if (btype==kBeamTypeAA || btype==kBeamTypepA || btype==kBeamTypeAp) rigScale *= 208./82.;
+  if (btype==kBeamTypeAA/* || btype==kBeamTypepA || btype==kBeamTypeAp */) rigScale *= 208./82.;
+  // Attention: in p-Pb the energy recorded in the GRP is the PROTON energy, no rigidity
+  // rescaling is needed
   //
   fQuadGradient = 22.0002*rigScale;
   fDipoleField  = 37.8781*rigScale;