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Measurement of the W boson mass
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Measurement of $$W^\pm $$W± boson production in Pb+Pb collisions at $$\sqrt{s_{\mathrm{NN}}} = 5.02~\text {Te}\text {V}$$sNN=5.02Te with the ATLAS detector

18 November 2019

G. Aad, B. Abbott, … ATLAS Collaboration

Understanding and constraining the PDF uncertainties in a W boson mass measurement with forward muons at the LHC

13 June 2019

Stephen Farry, Olli Lupton, … Mika Vesterinen

Measurement of the cross-section and charge asymmetry of W bosons produced in proton–proton collisions at $$\sqrt{s}=8~\text {TeV}$$s=8TeV with the ATLAS detector

12 September 2019

G. Aad, B. Abbott, … ATLAS Collaboration

Search for a right-handed W boson and a heavy neutrino in proton-proton collisions at s $$ \sqrt{s} $$ = 13 TeV

08 April 2022

The CMS collaboration, A. Tumasyan, … W. Vetens

Measurement of $$W^{\pm }Z$$ W ± Z production cross sections and gauge boson polarisation in pp collisions at $$\sqrt{s} = 13~\text {TeV}$$ s = 13 TeV with the ATLAS detector

22 June 2019

M. Aaboud, G. Aad, … ATLAS Collaboration

Measurement of $$W^{\pm }$$W±-boson and Z-boson production cross-sections in pp collisions at $$\sqrt{s}=2.76$$s=2.76 TeV with the ATLAS detector

08 November 2019

ATLAS Collaboration, G. Aad, … L. Zwalinski

Search for new physics in the lepton plus missing transverse momentum final state in proton-proton collisions at s $$ \sqrt{s} $$ = 13 TeV

11 July 2022

The CMS collaboration, A. Tumasyan, … W. Vetens

Review of Current Standard Model Results from ATLAS

12 August 2018

G. Brandt

The W mass and width measurement challenge at FCC-ee

02 December 2021

Paolo Azzurri

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  • Regular Article - Experimental Physics
  • Open Access
  • Published: 10 January 2022

Measurement of the W boson mass

  • The LHCb collaboration,
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Journal of High Energy Physics volume 2022, Article number: 36 (2022) Cite this article

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A preprint version of the article is available at arXiv.

Abstract

The W boson mass is measured using proton-proton collision data at \( \sqrt{s} \) = 13 TeV corresponding to an integrated luminosity of 1.7 fb−1 recorded during 2016 by the LHCb experiment. With a simultaneous fit of the muon q/pT distribution of a sample of W → μν decays and the ϕ* distribution of a sample of Z → μμ decays the W boson mass is determined to be

$$ {m}_w=80354\pm {23}_{\mathrm{stat}}\pm {10}_{\mathrm{exp}}\pm {17}_{\mathrm{theory}}\pm {9}_{\mathrm{PDF}}\mathrm{MeV}, $$

where uncertainties correspond to contributions from statistical, experimental systematic, theoretical and parton distribution function sources. This is an average of results based on three recent global parton distribution function sets. The measurement agrees well with the prediction of the global electroweak fit and with previous measurements.

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Authors and Affiliations

  1. Centro Brasileiro de Pesquisas Físicas (CBPF), Rio de Janeiro, Brazil

    J. Baptista Leite, I. Bediaga, M. Cruz Torres, J. M. De Miranda, A. C. dos Reis, A. Gomes, A. Massafferri & D. Torres Machado

  2. Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil

    S. Amato, L. De Paula, F. Ferreira Rodrigues, M. Gandelman, A. Hicheur, J. H. Lopes, L. Meyer Garcia, I. Nasteva, J. M. Otalora Goicochea, E. Polycarpo, M. S. Rangel, F. L. Souza De Almeida & B. Souza De Paula

  3. Center for High Energy Physics, Tsinghua University, Beijing, China

    C. Chen, C. Dong, J. Fan, Y. Gan, G. Gong, C. Gu, X. Hu, F. Jiang, Y. Kang, Y. Luo, H. Mu, H. Qi, N. Qin, Z. Ren, J. Wang, M. Wang, Z. Wang, L. Xu, D. Yang, M. Zeng, L. Zhang & X. Zhu

  4. Institute Of High Energy Physics (IHEP), Beijing, China

    I. Carli, S. Chen, N. A. Grieser, Y. Li, Y. Li, S. Liu, Y. Lu, L. Ma, M. Tobin, J. Wang & Q. Zou

  5. School of Physics State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing, China

    Y. Gao, Y. Shang, Z. Shen, X. Tong, J. Wang, A. Xu, Z. Xu, Z. Yang, S. Zhang, Y. Zhang & T. Zhou

  6. University of Chinese Academy of Sciences, Beijing, China

    A. F. Campoverde Quezada, Y. Fan, J. He, Y. Hou, W. Huang, H. Liu, X. Lyu, R. Ma, D. Popov, W. Qian, J. Qin, R. I. Rabadan Trejo, Z. Wang, Z. Xiang, J. Xu, Q. Xu, Z. Xu, S. Yang, Y. Yang, Y. Zheng, X. Zhou, Y. Zhou & Z. Zhu

  7. Institute of Particle Physics, Central China Normal University, Wuhan, Hubei, China

    Q. Han, R. Hou, W. Hu, S. Li, Y. Wang, D. Xiao, Y. Xie, M. Xu, H. Yin, D. Zhang & X. Zhu

  8. Univ. Savoie Mont Blanc, CNRS, IN2P3-LAPP, Annecy, France

    M. Chefdeville, D. Decamp, A. G. Downes, Ph. Ghez, J. F. Marchand, M.-N. Minard, C. Normand, B. Pietrzyk, B. Quintana, M. Reboud & S. T’Jampens

  9. Université Clermont Auvergne, CNRS/IN2P3, LPC, Clermont-Ferrand, France

    H. Afsharnia, Z. Ajaltouni, E. Cogneras, O. Deschamps, R. Lefèvre,