Measurement of the W boson mass

LHCb Collaboration, W. Barter

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

The W boson mass is measured using proton-proton collision data at s√= 13 TeV corresponding to an integrated luminosity of 1.7 fb1 recorded during 2016 by the LHCb experiment. With a simultaneous fit of the muon q/pT distribution of a sample of Wμν decays and the ϕ* distribution of a sample of Zμμ decays the W boson mass is determined to bemw=80354±23stat±10exp±17theory±9PDFMeV,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.
Original languageEnglish
Article number036
Pages (from-to)1-37
Number of pages37
Journal Journal of High Energy Physics
Issue number1
Publication statusPublished - 10 Jan 2022


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