High Energy Physics Seminars
| High Energy
Wednesday, January 19, 2011
Physics Building, Room 204
[Host: Chris Neu]
"W/Z Physics at CMS"
In this talk I discuss recent measurements of the Z ---> l+l- and W
---> lv inclusive cross-sections performed by the CMS collaboration.
W and Z gauge boson production has been among the first physics
at the LHC and the CMS results are an important test of Standard
Model predictions at the unprecedented pp center-of-mass collision
energy of 7 TeV. Events are selected for the analysis by requiring
the presence of energetic, isolated electrons or muons. The presence
of an energetic neutrino is demonstrated using the distribution of
missing transverse energy. I describe the criteria used for lepton
identification, as well as the data-driven techniques employed in the
estimation of efficiencies, in the tuning of Monte Carlo simulation
and in the determination of the most important background
contributions. I discuss the methods used to evaluate experimental
uncertainties and present relevant kinematic distributions and the
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