[Rivet-svn] r1874 - trunk/src/Analyses

[blackhole at projects.hepforge.org]

Author: buckley
Date: Tue Oct  6 11:49:54 2009
New Revision: 1874

Log:
Regressing d(eta) change, since I was looking at the wrong histo. The cross-section still looks pretty weird: too low for Nch, too high for sum(Et)...

Modified:
   trunk/src/Analyses/UA1_1990_S2044935.cc

Modified: trunk/src/Analyses/UA1_1990_S2044935.cc
==============================================================================
--- trunk/src/Analyses/UA1_1990_S2044935.cc	Tue Oct  6 11:41:29 2009	(r1873)
+++ trunk/src/Analyses/UA1_1990_S2044935.cc	Tue Oct  6 11:49:54 2009	(r1874)
@@ -90,9 +90,9 @@
       }
 
       // Particle/track level histos
-      const double deta = 5.0; //< @todo No factor of 2 for both sides?
+      const double deta = 2 * 5.0;
       const double dphi = TWOPI;
-      const double dnch_deta = nch/5.0;
+      const double dnch_deta = nch/5.0; //< @todo No factor of 2 for both sides?
       foreach (const Particle& p, cfs.particles()) {
         const double pt = p.momentum().pT();
         const double scaled_weight = weight/(deta*dphi*pt);
@@ -129,6 +129,7 @@
     void finalize() {
       const double xsec = crossSection();
       if (_sumwTrig > 0) {
+        /// @todo Normalisation seems low by factor of ~2:
         normalize(_hist_Nch200, xsec/millibarn * _sumwTrig/sumOfWeights());
         normalize(_hist_Nch500, xsec/millibarn * _sumwTrig/sumOfWeights());
         normalize(_hist_Nch900, xsec/millibarn * _sumwTrig/sumOfWeights());