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Measurement of the W boson mass at LHCb
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Hunter, Ross (2022) Measurement of the W boson mass at LHCb. In: The European Physical Society Conference on High Energy Physics (EPS-HEP2021), Online, 26-30 Jul 2021. Published in: Proceedings of Science, 398 doi:10.22323/1.398.0456 ISSN 1824-8039.
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WRAP-Measurement-of-the-W-boson-mass-at-LHCb-Hunter-22.pdf - Published Version - Requires a PDF viewer. Available under License Creative Commons Attribution Non-commercial No Derivatives 4.0. Download (430Kb) | Preview |
Official URL: http://dx.doi.org/10.22323/1.398.0456
Abstract
Constraints on new physics in the electroweak sector are limited by the precision of direct measurements of the W boson mass (mW). A new measurement is hereby reported, using proton-proton collision data recorded by the LHCb experiment in 2016 at s√=13 TeV, corresponding to roughly 1.7 fb−1 of integrated luminosity. From a simultaneous fit of the muon q/pT distribution from W→μν decays and the ϕ∗ distribution from Z→μμ decays, mW is measured to be
mW=80354±23stat±10exp±17theory±9PDFMeV,
where the uncertainties are due to statistical, experimental systematic, theoretical and parton distribution function sources respectively. This is an average of results based on three recent global parton distribution function sets, and is compatible with previous measurements as well as the prediction from the global electroweak fit. This measurement is a pathfinder for a full Run-2 (2016-2018) measurement from LHCb, which is expected to be competitive with current world-leading measurements, and to make a substantial contribution to an LHC-wide average due to the complementary acceptance of LHCb with respect to ATLAS and CMS.
Item Type: | Conference Item (Paper) | ||||||||
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Subjects: | Q Science > QC Physics | ||||||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||||||
Library of Congress Subject Headings (LCSH): | W bosons, Particles (Nuclear physics) | ||||||||
Journal or Publication Title: | Proceedings of Science | ||||||||
Publisher: | Scuola Internazionale Superiore di Studi Avanzati (S I S S A) | ||||||||
ISSN: | 1824-8039 | ||||||||
Book Title: | Proceedings of The European Physical Society Conference on High Energy Physics — PoS(EPS-HEP2021) | ||||||||
Official Date: | 12 May 2022 | ||||||||
Dates: |
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Volume: | 398 | ||||||||
Article Number: | 456 | ||||||||
DOI: | 10.22323/1.398.0456 | ||||||||
Status: | Peer Reviewed | ||||||||
Publication Status: | Published | ||||||||
Access rights to Published version: | Open Access (Creative Commons) | ||||||||
Date of first compliant deposit: | 31 May 2022 | ||||||||
Date of first compliant Open Access: | 1 June 2022 | ||||||||
Conference Paper Type: | Paper | ||||||||
Title of Event: | The European Physical Society Conference on High Energy Physics (EPS-HEP2021) | ||||||||
Type of Event: | Conference | ||||||||
Location of Event: | Online | ||||||||
Date(s) of Event: | 26-30 Jul 2021 | ||||||||
Open Access Version: |
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