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

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dc.contributor.authorAad, G.
dc.contributor.authorAakvaag, E.
dc.contributor.authorAbbott, B.
dc.contributor.authorAbdelhameed, S.
dc.contributor.authorAbeling, K.
dc.contributor.authorAbicht, N.J.
dc.contributor.authorAbidi, S.H.
dc.contributor.authorAboelela, M.
dc.contributor.authorAboulhorma, A.
dc.contributor.authorAbramowicz, H.
dc.contributor.authorAbreu, H.
dc.contributor.authorAbulaiti, Y.
dc.contributor.authorAcharya, B.S.
dc.contributor.authorAckermann, A.
dc.contributor.authorBourdarios, C.A.
dc.contributor.authorAdamczyk, L.
dc.contributor.authorAddepalli, S.V.
dc.contributor.authorAddison, M.J.
dc.contributor.authorAdelman, J.
dc.contributor.authorAdiguzel, A.
dc.contributor.authoret al.
dc.date.issued2024
dc.description.abstractProton–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.
dc.description.statementofresponsibilityATLAS Collaboration
dc.identifier.citationEuropean Physical Journal C, 2024; 84(12):1309-1-1309-36
dc.identifier.doi10.1140/epjc/s10052-024-13190-x
dc.identifier.issn1434-6044
dc.identifier.issn1434-6052
dc.identifier.orcidJackson, P. [0000-0002-0847-402X]
dc.identifier.orcidKong, A.X.Y. [0000-0001-8063-8765]
dc.identifier.orcidMcDougall, A.E. [0000-0001-7713-2800]
dc.identifier.orcidOliver, J.L. [0000-0002-0713-6627]
dc.identifier.orcidPandya, H.D. [0000-0002-1199-945X]
dc.identifier.orcidPotti, H. [0000-0002-0800-9902]
dc.identifier.orcidRuggeri, T.A. [0000-0001-9941-1966]
dc.identifier.orcidTing, E.X.L. [0000-0002-5886-6339]
dc.identifier.orcidWhite, M.J. [0000-0001-5474-4580]
dc.identifier.urihttps://hdl.handle.net/2440/147165
dc.language.isoen
dc.publisherSpringer
dc.relation.grantARC
dc.rights© CERN for the benefit of the ATLAS Collaboration 2024. This article is licensed under a Creative Commons Attribution 4.0 International License,which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecomm ons.org/licenses/by/4.0/.
dc.source.urihttps://doi.org/10.1140/epjc/s10052-024-13190-x
dc.subject𝑊-boson mass; ATLAS; protons
dc.titleMeasurement of the 𝑊-boson mass and width with the ATLAS detector using proton–proton collisions √𝑠 = 7 TeV
dc.title.alternativeMeasurement of the 𝑊-boson mass and width with the ATLAS detector using proton–proton collisions root s = 7 TeV
dc.typeJournal article
pubs.publication-statusPublished online

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