Measurement of the W-boson mass and width with the ATLAS detector using proton–proton collisions at √s=7 TeV

ATLAS Collaboration

doi:10.1140/epjc/s10052-024-13190-x

Measurement of the W-boson mass and width with the ATLAS detector using proton–proton collisions at √s=7 TeV

ATLAS Collaboration

iThemba Laboratory for Accelerator Based Sciences
Department of Physics
University of South Africa
University of Zululand
Cadi Ayyad University
Departamento de Física Teórica y del Cosmos
University of Granada
CERN
Columbia University
Demokritos National Centre for Scientific Research
University of Sheffield
Harvard University
University of Bologna
National Institute for Nuclear Physics
University of Belgrade
University of Siegen
Heidelberg University
CAS - Institute of High Energy Physics
University of Science and Technology of China
Shanghai Jiao Tong University
University of Michigan, Ann Arbor
Shandong University
University of Arizona
Tsinghua University
Nanjing University
University of Illinois at Urbana-Champaign
SLAC National Accelerator Laboratory
University of California at Santa Cruz
University of Washington
Université Paris-Saclay
Lawrence Berkeley National Laboratory
University College London
The University of Tokyo
Université de Toulouse

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

38 Scopus citations

Abstract

Proton–proton collision data recorded by the ATLAS detector in 2011, at a centre-of-mass energy of 7 TeV, have been used for an improved determination of the W-boson mass and a first measurement of the W-boson width at the LHC. Recent fits to the proton parton distribution functions are incorporated in the measurement procedure and an improved statistical method is used to increase the measurement precision. The measurement of the W-boson mass yields a value of mW=80,366.5±9.8(stat.)±12.5(syst.) MeV =80,366.5±15.9 MeV, and the width is measured as ΓW=2202±32(stat.)±34(syst.) MeV =2202±47 MeV. The first uncertainty components are statistical and the second correspond to the experimental and physics-modelling systematic uncertainties. Both results are consistent with the expectation from fits to electroweak precision data. The present measurement of mW is compatible with and supersedes the previous measurement performed using the same data.

Original language	English
Article number	1309
Journal	European Physical Journal C
Volume	84
Issue number	12
DOIs	https://doi.org/10.1140/epjc/s10052-024-13190-x
State	Published - Dec 2024

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10.1140/epjc/s10052-024-13190-x

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@article{75ba0881140a48f0b3d9ab24ef5255f8,

title = "Measurement of the W-boson mass and width with the ATLAS detector using proton–proton collisions at √s=7 TeV",

abstract = "Proton–proton collision data recorded by the ATLAS detector in 2011, at a centre-of-mass energy of 7 TeV, have been used for an improved determination of the W-boson mass and a first measurement of the W-boson width at the LHC. Recent fits to the proton parton distribution functions are incorporated in the measurement procedure and an improved statistical method is used to increase the measurement precision. The measurement of the W-boson mass yields a value of mW=80,366.5±9.8(stat.)±12.5(syst.) MeV =80,366.5±15.9 MeV, and the width is measured as ΓW=2202±32(stat.)±34(syst.) MeV =2202±47 MeV. The first uncertainty components are statistical and the second correspond to the experimental and physics-modelling systematic uncertainties. Both results are consistent with the expectation from fits to electroweak precision data. The present measurement of mW is compatible with and supersedes the previous measurement performed using the same data.",

author = "\{ATLAS Collaboration\} and L. Zwalinski and W. Zou and O. Zormpa and Zorbas, \{T. G.\} and K. Zoch and A. Zoccoli and L. {\v Z}ivkovi{\'c} and M. Ziolkowski and J. Zinsser and Zimine, \{N. I.\} and K. Zhukov and X. Zhuang and Y. Zhu and Y. Zhu and X. Zhu and J. Zhu and Zhu, \{C. G.\} and Y. Zhou and Y. Zhou and N. Zhou and H. Zhou and B. Zhou and D. Zhong and Z. Zheng and X. Zheng and K. Zheng and J. Zheng and A. Zhemchugov and Z. Zhao and Z. Zhao and Y. Zhao and T. Zhao and H. Zhao and Z. Zhang and Z. Zhang and Z. Zhang and Y. Zhang and Y. Zhang and Y. Zhang and X. Zhang and X. Zhang and T. Zhang and S. Zhang and S. Zhang and D. Tsybychev and G. Piacquadio and J. Jia and J. Hobbs and V. Dao and H. Arnold",

note = "Publisher Copyright: {\textcopyright} The Author(s) 2024.",

year = "2024",

month = dec,

doi = "10.1140/epjc/s10052-024-13190-x",

language = "English",

volume = "84",

journal = "European Physical Journal C",

issn = "1434-6044",

number = "12",

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TY - JOUR

T1 - Measurement of the W-boson mass and width with the ATLAS detector using proton–proton collisions at √s=7 TeV

AU - ATLAS Collaboration

AU - Zwalinski, L.

AU - Zou, W.

AU - Zormpa, O.

AU - Zorbas, T. G.

AU - Zoch, K.

AU - Zoccoli, A.

AU - Živković, L.

AU - Ziolkowski, M.

AU - Zinsser, J.

AU - Zimine, N. I.

AU - Zhukov, K.

AU - Zhuang, X.

AU - Zhu, Y.

AU - Zhu, X.

AU - Zhu, J.

AU - Zhu, C. G.

AU - Zhou, Y.

AU - Zhou, N.

AU - Zhou, H.

AU - Zhou, B.

AU - Zhong, D.

AU - Zheng, Z.

AU - Zheng, X.

AU - Zheng, K.

AU - Zheng, J.

AU - Zhemchugov, A.

AU - Zhao, Z.

AU - Zhao, Y.

AU - Zhao, T.

AU - Zhao, H.

AU - Zhang, Z.

AU - Zhang, Y.

AU - Zhang, X.

AU - Zhang, T.

AU - Zhang, S.

AU - Tsybychev, D.

AU - Piacquadio, G.

AU - Jia, J.

AU - Hobbs, J.

AU - Dao, V.

AU - Arnold, H.

PY - 2024/12

Y1 - 2024/12

N2 - Proton–proton collision data recorded by the ATLAS detector in 2011, at a centre-of-mass energy of 7 TeV, have been used for an improved determination of the W-boson mass and a first measurement of the W-boson width at the LHC. Recent fits to the proton parton distribution functions are incorporated in the measurement procedure and an improved statistical method is used to increase the measurement precision. The measurement of the W-boson mass yields a value of mW=80,366.5±9.8(stat.)±12.5(syst.) MeV =80,366.5±15.9 MeV, and the width is measured as ΓW=2202±32(stat.)±34(syst.) MeV =2202±47 MeV. The first uncertainty components are statistical and the second correspond to the experimental and physics-modelling systematic uncertainties. Both results are consistent with the expectation from fits to electroweak precision data. The present measurement of mW is compatible with and supersedes the previous measurement performed using the same data.

AB - Proton–proton collision data recorded by the ATLAS detector in 2011, at a centre-of-mass energy of 7 TeV, have been used for an improved determination of the W-boson mass and a first measurement of the W-boson width at the LHC. Recent fits to the proton parton distribution functions are incorporated in the measurement procedure and an improved statistical method is used to increase the measurement precision. The measurement of the W-boson mass yields a value of mW=80,366.5±9.8(stat.)±12.5(syst.) MeV =80,366.5±15.9 MeV, and the width is measured as ΓW=2202±32(stat.)±34(syst.) MeV =2202±47 MeV. The first uncertainty components are statistical and the second correspond to the experimental and physics-modelling systematic uncertainties. Both results are consistent with the expectation from fits to electroweak precision data. The present measurement of mW is compatible with and supersedes the previous measurement performed using the same data.

UR - https://www.scopus.com/pages/publications/105008498904

U2 - 10.1140/epjc/s10052-024-13190-x

DO - 10.1140/epjc/s10052-024-13190-x

M3 - Article

AN - SCOPUS:105008498904

SN - 1434-6044

VL - 84

JO - European Physical Journal C

JF - European Physical Journal C

IS - 12

M1 - 1309

ER -

Measurement of the W-boson mass and width with the ATLAS detector using proton–proton collisions at √s=7 TeV

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