Measurement of the <i>W</i> boson mass



Aaij, R, Abdelmotteleb, ASW, Beteta, C Abellan, Ackernley, T, Adeva, B, Adinolfi, M, Afsharnia, H, Agapopoulou, C, Aidala, CA, Aiola, S
et al (show 1001 more authors) (2022) Measurement of the <i>W</i> boson mass. JOURNAL OF HIGH ENERGY PHYSICS, 2022 (1).

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Abstract

<jats:title>A<jats:sc>bstract</jats:sc></jats:title><jats:p>The<jats:italic>W</jats:italic>boson mass is measured using proton-proton collision data at<jats:inline-formula><jats:alternatives><jats:tex-math>$$ \sqrt{s} $$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msqrt><mml:mi>s</mml:mi></mml:msqrt></mml:math></jats:alternatives></jats:inline-formula>= 13 TeV corresponding to an integrated luminosity of 1.7 fb<jats:sup><jats:italic>−</jats:italic>1</jats:sup>recorded during 2016 by the LHCb experiment. With a simultaneous fit of the muon<jats:italic>q/p</jats:italic><jats:sub>T</jats:sub>distribution of a sample of<jats:italic>W</jats:italic>→<jats:italic>μν</jats:italic>decays and the<jats:italic>ϕ</jats:italic><jats:sup>*</jats:sup>distribution of a sample of<jats:italic>Z</jats:italic>→<jats:italic>μμ</jats:italic>decays the<jats:italic>W</jats:italic>boson mass is determined to be<jats:disp-formula><jats:alternatives><jats:tex-math>$$ {m}_w=80354\pm {23}_{\mathrm{stat}}\pm {10}_{\mathrm{exp}}\pm {17}_{\mathrm{theory}}\pm {9}_{\mathrm{PDF}}\mathrm{MeV}, $$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mi>m</mml:mi><mml:mi>w</mml:mi></mml:msub><mml:mo>=</mml:mo><mml:mn>80354</mml:mn><mml:mo>±</mml:mo><mml:msub><mml:mn>23</mml:mn><mml:mtext>stat</mml:mtext></mml:msub><mml:mo>±</mml:mo><mml:msub><mml:mn>10</mml:mn><mml:mi>exp</mml:mi></mml:msub><mml:mo>±</mml:mo><mml:msub><mml:mn>17</mml:mn><mml:mtext>theory</mml:mtext></mml:msub><mml:mo>±</mml:mo><mml:msub><mml:mn>9</mml:mn><mml:mi>PDF</mml:mi></mml:msub><mml:mi>MeV</mml:mi><mml:mo>,</mml:mo></mml:math></jats:alternatives></jats:disp-formula></jats:p><jats:p>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.</jats:p>

Item Type: Article
Uncontrolled Keywords: Electroweak interaction, Hadron-Hadron scattering (experiments), QCD, Forward physics
Divisions: Faculty of Science and Engineering > School of Physical Sciences
Depositing User: Symplectic Admin
Date Deposited: 16 May 2022 13:44
Last Modified: 14 Oct 2023 08:16
DOI: 10.1007/JHEP01(2022)036
Open Access URL: https://link.springer.com/article/10.1007/JHEP01(2...
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URI: https://livrepository.liverpool.ac.uk/id/eprint/3154880