Measurements of inclusive W and Z cross sections in pp collisions at √ s = 7 TeV
Name
Khachatryan2011_Article_MeasurementsOfInclusiveWAndZCr.pdf
Description
Published version
Size
754.86 KB
Format
Adobe PDF
Checksum (MD5)
88c1a2ea68a8c849c4e6a8120f04f1bd
Author(s)
The CMS Collaboration
Date Issued
2011
Journal
Journal of High Energy Physics
Publisher
Springer Science and Business Media LLC
Citation
Khachatryan, V., et al. "Measurements of Inclusive W and Z Cross Sections in Pp Collisions at Root S=7 Tev." Journal of High Energy Physics 1 (2011).
Version
Final published version
Abstract
Measurements of inclusive W and Z boson production cross sections in pp collisions at √s = 7 TeV are presented, based on 2.9 pb-1 of data recorded by the CMS detector at the LHC. The measurements, performed in the electron and muon decay channels, are combined to give σ(pp → WX) × B(W → l?) = 9.95 ± 0.07 (stat.) ± 0.28 (syst.) ± 1.09 (lumi.) nb and σ(pp → ZX) × B(Z → l +l-) = 0.931 ± 0.026 (stat.) ± 0.023 (syst.) ± 0.102 (lumi.) nb, where l stands for either e or μ. Theoretical predictions, calculated at the next-to-next-to-leading order in QCD using recent parton distribution functions, are in agreement with the measured cross sections. Ratios of cross sections, which incur an experimental systematic uncertainty of less than 4%, are also reported.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
Terms of Use
Creative Commons Attribution 4.0 International license
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1007/JHEP01(2011)080
