Measurement of the W boson mass

The LHCb Collaboration

Research output: Contribution to JournalArticleAcademicpeer-review

Abstract

The W boson mass is measured using proton-proton collision data at 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 bemw= 80354 ± 23 stat± 10 exp± 17 theory± 9 PDFMeV, 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. [Figure not available: see fulltext.].

Original languageEnglish
Article number36
Pages (from-to)1-38
Number of pages38
JournalJournal of High Energy Physics
Volume2022
Early online date10 Jan 2022
DOIs
Publication statusPublished - Jan 2022

Bibliographical note

Publisher Copyright:
© 2022, The Author(s).

Funding

FundersFunder number
Not addedunidentified

    Keywords

    • Electroweak interaction
    • Forward physics
    • Hadron-Hadron scattering (experiments)
    • QCD

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