Drell-Yan comparison

Last update 23 December 2005

Pythia Drell-Yan versus Rizzo's Drell-Yan without ISR/FSR from 1 TeV, PDF=CTEQ5L (HUGE statistics sample); pT(e+/-)>20 GeV, eta(e+/-)<2.5
Cross sections before cuts = 6.6 fb (Pythia), 6.6 fb (Rizzo)
Cross sections after cuts = 5.71 fb (Pyhtia), 5.71 fb (Rizzo)
Comparison of kinematic observables (left) (dilepton invariant mass, FB asymetry, Z' rapidity, Z' pT, lepton pT and lepton pseudo rapidity)
and ratio between both (right); relative normalisation by number of events after cuts :

Pythia Drell-Yan versus Rizzo's Drell-Yan with ISR/FSR from 1 TeV, PDF=CTEQ5L (HUGE statistics sample); pT(e+/-)>20 GeV, eta(e+/-)<2.5
Cross sections before cuts = 6.6 fb (Pythia), 6.58 fb (Rizzo)
Cross sections after cuts = 5.74 fb (Pyhtia), 5.71 fb (Rizzo)
Comparison of kinematic observables (left) (dilepton invariant mass, FB asymetry, Z' rapidity, Z' pT, lepton pT and lepton pseudo rapidity)
and ratio between both (right); relative normalisation by number of events after cuts :

Creation date: 9 December 2005