Measurement of the W charge asymmetry in the W→μν decay mode in pp collisions at √s=7 TeV with the ATLAS detector

ATLAS Collaboration

doi:10.1016/j.physletb.2011.05.024

Measurement of the W charge asymmetry in the W→μν decay mode in pp collisions at √s=7 TeV with the ATLAS detector

ATLAS Collaboration

University of Freiburg
University of Oklahoma
Institute for High Energy Physics
University of Geneva
University of Oxford
Azerbaijan National Academy of Sciences
Oklahoma State University
Michigan State University
Tel Aviv University
Université Paris-Sud
University of Milan
National Institute for Nuclear Physics
Abdus Salam International Centre for Theoretical Physics
United States Department of Energy
Hampton University
Yale University
Max Planck Institute for Physics (Werner Heisenberg Institute)
Ludwig Maximilian University of Munich
Queen Mary University of London
Rutherford Appleton Laboratory
Brandeis University
University of Granada
Laboratório de Instrumentação e Física Experimental de Partículas
Johannes Gutenberg University Mainz
Boston University
Stony Brook University
University of Texas at Dallas
University of Rome Tor Vergata
Bogazici University
Lund University
The University of Tokyo
RAS - P.N. Lebedev Physics Institute
Kobe University
SUNY Albany
Royal Holloway University of London
Laboratoire de Physique Subatomique et de Cosmologie de Grenoble
CERN
Joint Institute for Nuclear Research
Horia Hulubei National Institute of Physics and Nuclear Engineering
National Technical University of Athens
University of Bonn
Humboldt University of Berlin
University of Pennsylvania
University of Liverpool
University of Glasgow

Research output: Contribution to journal › Article › peer-review

56 Citations (Scopus)

Abstract

This Letter reports a measurement of the muon charge asymmetry from W bosons 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. This measurement provides information on the u and d quark momentum fractions in the proton.

Original language	English
Pages (from-to)	31-49
Number of pages	19
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	701
Issue number	1
DOIs	https://doi.org/10.1016/j.physletb.2011.05.024
Publication status	Published - 27 Jun 2011
Externally published	Yes

Keywords

Charge asymmetry
Muon decay mode
Parton distribution function
W production

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10.1016/j.physletb.2011.05.024

Cite this

@article{45ad77e2cd474830bbe41e6a1b2f69c4,

title = "Measurement of the W charge asymmetry in the W→μν decay mode in pp collisions at √s=7 TeV with the ATLAS detector",

abstract = "This Letter reports a measurement of the muon charge asymmetry from W bosons 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. This measurement provides information on the u and d quark momentum fractions in the proton.",

keywords = "Charge asymmetry, Muon decay mode, Parton distribution function, W production",

author = "\{ATLAS Collaboration\} and G. Aad and B. Abbott and J. Abdallah and Abdelalim, \{A. A.\} and A. Abdesselam and O. Abdinov and B. Abi and M. Abolins and H. Abramowicz and H. Abreu and E. Acerbi and Acharya, \{B. S.\} and Adams, \{D. L.\} and Addy, \{T. N.\} and J. Adelman and M. Aderholz and S. Adomeit and P. Adragna and T. Adye and S. Aefsky and Aguilar-Saavedra, \{J. A.\} and M. Aharrouche and Ahlen, \{S. P.\} and F. Ahles and A. Ahmad and M. Ahsan and G. Aielli and T. Akdogan and {\AA}kesson, \{T. P.A.\} and G. Akimoto and Akimov, \{A. V.\} and A. Akiyama and Alam, \{M. S.\} and Alam, \{M. A.\} and S. Albrand and M. Aleksa and Aleksandrov, \{I. N.\} and F. Alessandria and C. Alexa and G. Alexander and G. Alexandre and T. Alexopoulos and M. Alhroob and M. Aliev and G. Alimonti and J. Alison and M. Aliyev and Allport, \{P. P.\} and Allwood-Spiers, \{S. E.\} and A. Moraes",

note = "Publisher Copyright: {\textcopyright} 2011 CERN",

year = "2011",

month = jun,

day = "27",

doi = "10.1016/j.physletb.2011.05.024",

language = "English",

volume = "701",

pages = "31--49",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

number = "1",

}

TY - JOUR

T1 - Measurement of the W charge asymmetry in the W→μν decay mode in pp collisions at √s=7 TeV with the ATLAS detector

AU - ATLAS Collaboration

AU - Aad, G.

AU - Abbott, B.

AU - Abdallah, J.

AU - Abdelalim, A. A.

AU - Abdesselam, A.

AU - Abdinov, O.

AU - Abi, B.

AU - Abolins, M.

AU - Abramowicz, H.

AU - Abreu, H.

AU - Acerbi, E.

AU - Acharya, B. S.

AU - Adams, D. L.

AU - Addy, T. N.

AU - Adelman, J.

AU - Aderholz, M.

AU - Adomeit, S.

AU - Adragna, P.

AU - Adye, T.

AU - Aefsky, S.

AU - Aguilar-Saavedra, J. A.

AU - Aharrouche, M.

AU - Ahlen, S. P.

AU - Ahles, F.

AU - Ahmad, A.

AU - Ahsan, M.

AU - Aielli, G.

AU - Akdogan, T.

AU - Åkesson, T. P.A.

AU - Akimoto, G.

AU - Akimov, A. V.

AU - Akiyama, A.

AU - Alam, M. S.

AU - Alam, M. A.

AU - Albrand, S.

AU - Aleksa, M.

AU - Aleksandrov, I. N.

AU - Alessandria, F.

AU - Alexa, C.

AU - Alexander, G.

AU - Alexandre, G.

AU - Alexopoulos, T.

AU - Alhroob, M.

AU - Aliev, M.

AU - Alimonti, G.

AU - Alison, J.

AU - Aliyev, M.

AU - Allport, P. P.

AU - Allwood-Spiers, S. E.

AU - Moraes, A.

PY - 2011/6/27

Y1 - 2011/6/27

N2 - This Letter reports a measurement of the muon charge asymmetry from W bosons 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. This measurement provides information on the u and d quark momentum fractions in the proton.

AB - This Letter reports a measurement of the muon charge asymmetry from W bosons 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. This measurement provides information on the u and d quark momentum fractions in the proton.

KW - Charge asymmetry

KW - Muon decay mode

KW - Parton distribution function

KW - W production

UR - https://www.scopus.com/pages/publications/85041751927

U2 - 10.1016/j.physletb.2011.05.024

DO - 10.1016/j.physletb.2011.05.024

M3 - Article

AN - SCOPUS:85041751927

SN - 0370-2693

VL - 701

SP - 31

EP - 49

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 1

ER -

Measurement of the W charge asymmetry in the W→μν decay mode in pp collisions at √s=7 TeV with the ATLAS detector

Abstract

Keywords

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