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Title: Measurement of the W charge asymmetry in the pp collisions at √s = 7 TeV with the ATLAS detector

Abstract

This letter reports a measurement of the muon charge asymmetry from W Boson produced in proton-proton collisions at a centre-of-mass energy of 7 TeV with the ATLAS experiment at the LHC. The asymmetry is measured in the W → μν decay mode as a function of the muon pseudorapidity using a data sample corresponding to a total integrated luminosity of 31 pb -1. The results are compared to predictions based on next-to-leading order calculations with various parton distribution functions. The measurement provides information on the u and d quark momentum fractions in the proton.

Authors:
 [1]
  1. et al.
Publication Date:
Research Org.:
SLAC National Accelerator Lab. (SLAC), Menlo Park, CA (United States); Univ. of Pennsylvania, Philadelphia, PA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Contributing Org.:
ATLAS Collaboration
OSTI Identifier:
1213823
Alternate Identifier(s):
OSTI ID: 1196002; OSTI ID: 1502991
Report Number(s):
SLAC-PUB-17066
Journal ID: ISSN 0370-2693; TRN: US1601024
Grant/Contract Number:  
AC02-76SF00515; FG02-95ER40893
Resource Type:
Published Article
Journal Name:
Physics Letters. Section B
Additional Journal Information:
Journal Volume: 701; Journal Issue: 1; Journal ID: ISSN 0370-2693
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ASYMMETRY; CERN LHC; D QUARKS; DISTRIBUTION FUNCTIONS; EXPERIMENTAL DATA; LUMINOSITY; MUONS; PARTICLE DECAY; PARTICLE RAPIDITY; PROTON-PROTON INTERACTIONS; TEV RANGE; W MINUS BOSONS; W PLUS BOSONS; muon charge asymmetry; muon decay mode; W production; Charge asymmetry; Parton distribution function

Citation Formats

Aad, G. Measurement of the W charge asymmetry in the pp collisions at √s = 7 TeV with the ATLAS detector. United States: N. p., 2011. Web. doi:10.1016/j.physletb.2011.05.024.
Aad, G. Measurement of the W charge asymmetry in the pp collisions at √s = 7 TeV with the ATLAS detector. United States. doi:10.1016/j.physletb.2011.05.024.
Aad, G. Wed . "Measurement of the W charge asymmetry in the pp collisions at √s = 7 TeV with the ATLAS detector". United States. doi:10.1016/j.physletb.2011.05.024.
@article{osti_1213823,
title = {Measurement of the W charge asymmetry in the pp collisions at √s = 7 TeV with the ATLAS detector},
author = {Aad, G.},
abstractNote = {This letter reports a measurement of the muon charge asymmetry from W Boson produced in proton-proton collisions at a centre-of-mass energy of 7 TeV with the ATLAS experiment at the LHC. The asymmetry is measured in the W → μν decay mode as a function of the muon pseudorapidity using a data sample corresponding to a total integrated luminosity of 31 pb-1. The results are compared to predictions based on next-to-leading order calculations with various parton distribution functions. The measurement provides information on the u and d quark momentum fractions in the proton.},
doi = {10.1016/j.physletb.2011.05.024},
journal = {Physics Letters. Section B},
number = 1,
volume = 701,
place = {United States},
year = {2011},
month = {6}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1016/j.physletb.2011.05.024

Citation Metrics:
Cited by: 32 works
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