Here you go.

  • pp-ww(background).png:
    pp-ww(background).png

  • Pp-ww(background).png:
    Pp-ww(background).png

Elliot Lipeles' (lipeles@fnal.gov) ran the same leading order process
in MCFM:
sigma(ppbar->WW) = 8508.913 +/- 39.551 fb
sigma(pp->WW) = 3122.108 +/- 15.252 fb

Summing the sub process total cross sections yielded from comphep
produces:
sigma(pp->WW) = 3.2930 +/- 0.2795 pb
sigma(ppbar->WW) = 8.7719 +/- 0.2693 pb

Conclusion: The difference in scale between the graphs, and the fact that
the total cross sections do not match the expected values for pp,ppbar->WW
production at 2TeV is shown to be a result of comphep being a leading order only generator.

-- BruceThayre - 11 Aug 2006

Topic attachments
I Attachment Action Size Date Who Comment
pngpng Pp-ww(background).png manage 8.7 K 2006/08/11 - 18:14 BruceThayre  
pngpng pp-ww(background).png manage 8.7 K 2006/08/11 - 18:14 BruceThayre  
Topic revision: r2 - 2006/09/29 - 23:32:53 - BruceThayre
 
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