Speaker
Chang Liu
(Purdue)
Description
We present the strategy of the measurement of the differential cross-section
of Drell-Yan dimuon production in early proton-proton collision data
produced by the LHC accelerator at $\sqrt{s}=$~10~TeV and collected by the
CMS detector. We study the Drell-Yan dimuon process for the whole mass
range, starting around the $\Upsilon$ peaks, and going through the $Z$ peak
to the kinematic limit. Events at the $\Upsilon$ and $Z$ peaks are used to
measure the trigger and reconstruction efficiencies from data by
tag-and-probe method. Methods for signal selection and background rejection
in the different mass ranges, where the sources and magnitude of backgrounds
change substantially, are developed. We also discuss the experimental and
theoretical systematic uncertainties and the implication for discovery of
new physics by searching for deviations.
Author
Chang Liu
(Purdue)
