From 39df3d6d1be3793c344e5e9153fba10ebcf5451b Mon Sep 17 00:00:00 2001
From: Elidiano Tronchin <elidiano.tronchin@gmail.com>
Date: Thu, 10 Jan 2019 11:03:52 +0100
Subject: [PATCH] * Restored original rotation matrix BeamToWorld (and left it
 commented)

---
 NPSimulation/Process/BeamReaction.cc | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/NPSimulation/Process/BeamReaction.cc b/NPSimulation/Process/BeamReaction.cc
index 32df6f88d..3d2a6b7a4 100644
--- a/NPSimulation/Process/BeamReaction.cc
+++ b/NPSimulation/Process/BeamReaction.cc
@@ -240,19 +240,18 @@ void NPS::BeamReaction::DoIt(const G4FastTrack& fastTrack,G4FastStep& fastStep)
     //////////////////////////////////////////////////////////
 
     /*
+
     G4ThreeVector col1(cos(Beam_theta) * cos(Beam_phi),
                        cos(Beam_theta) * sin(Beam_phi),
                        -sin(Beam_theta));
-    G4ThreeVector col2(-sin(-Beam_phi),
-                       cos(-Beam_phi),
+    G4ThreeVector col2(-sin(Beam_phi),
+                       cos(Beam_phi),
                        0);
     G4ThreeVector col3(sin(Beam_theta) * cos(Beam_phi),
                        sin(Beam_theta) * sin(Beam_phi),
                        cos(Beam_theta));
-    
     G4RotationMatrix BeamToWorld(col1, col2, col3);
     
-    
     */
 
 
-- 
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