[Rivet-svn] r2397 - trunk/src/Analyses

[blackhole at projects.hepforge.org]

Author: fsiegert
Date: Fri Apr  9 20:18:55 2010
New Revision: 2397

Log:
Fix definition of costheta^* in D0_2010_S8570965.
After conversation with the authors it turns out that there was a typo
in their paper:
> Regarding cosTheta*, it was defined incorrectly in the paper:
> there should be cosTheta* = tanh(y*), where y*=(eta1-eta2)/2,
> i.e. we have missed one external brackets!

Modified:
   trunk/src/Analyses/D0_2010_S8570965.cc

Modified: trunk/src/Analyses/D0_2010_S8570965.cc
==============================================================================
--- trunk/src/Analyses/D0_2010_S8570965.cc	Fri Apr  9 11:31:43 2010	(r2396)
+++ trunk/src/Analyses/D0_2010_S8570965.cc	Fri Apr  9 20:18:55 2010	(r2397)
@@ -97,7 +97,7 @@
       }
       
       double dPhiyy = mapAngle0ToPi(y1.phi()-y2.phi());
-      double costhetayy = fabs(tanh(y1.eta()-y2.eta())/2.0);
+      double costhetayy = fabs(tanh((y1.eta()-y2.eta())/2.0));
       
       _h_M->fill(Myy, weight);
       _h_pT->fill(pTyy, weight);