Compatibility and combination of world W-boson mass measurements

LHC-TeV MW Working Group; S. Amoroso; N. Andari; W. Barter; J. Bendavid; M. Boonekamp; S. Farry; M. Gruenewald; C. Hays; R. Hunter; J. Kretzschmar; O. Lupton; M. Pili; M. Ramos Pernas; B. Tuchming; M. Vesterinen; A. Vicini; C. Wang; M. Xu

doi:10.1140/epjc/s10052-024-12532-z

Compatibility and combination of world W-boson mass measurements

LHC-TeV MW Working Group
, S. Amoroso
, N. Andari
, W. Barter
, J. Bendavid
, M. Boonekamp
, S. Farry
, M. Gruenewald
, C. Hays^*
, R. Hunter
, J. Kretzschmar
, O. Lupton
, M. Pili
, M. Ramos Pernas
, B. Tuchming
, M. Vesterinen
, A. Vicini
, C. Wang
, M. Xu

^*Corresponding author for this work

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract

The compatibility of W -boson mass measurements performed by the ATLAS, LHCb, CDF, and D0 experiments is studied using a coherent framework with theory uncertainty correlations. The measurements are combined using a number of recent sets of parton distribution functions (PDF), and are further combined with the average value of measurements from the Large Electron–Positron collider. The considered PDF sets generally have a low compatibility with a suite of global rapidity-sensitive Drell–Yan measurements. The most compatible set is CT18 due to its larger uncertainties. A combination of all m W measurements yields a value of m W = 80,394.6 ± 11.5 MeV with the CT18
set, but has a probability of compatibility of 0.5% and is therefore disfavoured. Combinations are performed removing each measurement individually, and a 91% probability of compatibility is obtained when the CDF measurement is
removed. The corresponding value of the W boson mass is 80,369.2 ± 13.3 MeV, which differs by 3.6σ from the CDF value determined using the same PDF set.

Original language	English
Article number	451
Pages (from-to)	1-23
Number of pages	23
Journal	The European Physical Journal C
Volume	84
DOIs	https://doi.org/10.1140/epjc/s10052-024-12532-z
Publication status	Published - 2 May 2024

Keywords / Materials (for Non-textual outputs)

hep-ex

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https://arxiv.org/abs/2308.09417Licence: Creative Commons: Attribution (CC-BY)

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1/07/22 → 30/06/26
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LHC-TeV MW Working Group, Amoroso, S., Andari, N., Barter, W., Bendavid, J., Boonekamp, M., Farry, S., Gruenewald, M., Hays, C., Hunter, R., Kretzschmar, J., Lupton, O., Pili, M., Ramos Pernas, M., Tuchming, B., Vesterinen, M., Vicini, A., Wang, C., & Xu, M. (2024). Compatibility and combination of world W-boson mass measurements. The European Physical Journal C, 84, 1-23. Article 451. https://doi.org/10.1140/epjc/s10052-024-12532-z

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title = "Compatibility and combination of world W-boson mass measurements",

abstract = "The compatibility of W -boson mass measurements performed by the ATLAS, LHCb, CDF, and D0 experiments is studied using a coherent framework with theory uncertainty correlations. The measurements are combined using a number of recent sets of parton distribution functions (PDF), and are further combined with the average value of measurements from the Large Electron–Positron collider. The considered PDF sets generally have a low compatibility with a suite of global rapidity-sensitive Drell–Yan measurements. The most compatible set is CT18 due to its larger uncertainties. A combination of all m W measurements yields a value of m W = 80,394.6 ± 11.5 MeV with the CT18 set, but has a probability of compatibility of 0.5\% and is therefore disfavoured. Combinations are performed removing each measurement individually, and a 91\% probability of compatibility is obtained when the CDF measurement is removed. The corresponding value of the W boson mass is 80,369.2 ± 13.3 MeV, which differs by 3.6σ from the CDF value determined using the same PDF set.",

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LHC-TeV MW Working Group, Amoroso, S, Andari, N, Barter, W, Bendavid, J, Boonekamp, M, Farry, S, Gruenewald, M, Hays, C, Hunter, R, Kretzschmar, J, Lupton, O, Pili, M, Ramos Pernas, M, Tuchming, B, Vesterinen, M, Vicini, A, Wang, C & Xu, M 2024, 'Compatibility and combination of world W-boson mass measurements', The European Physical Journal C, vol. 84, 451, pp. 1-23. https://doi.org/10.1140/epjc/s10052-024-12532-z

TY - JOUR

T1 - Compatibility and combination of world W-boson mass measurements

AU - LHC-TeV MW Working Group

AU - Amoroso, S.

AU - Andari, N.

AU - Barter, W.

AU - Bendavid, J.

AU - Boonekamp, M.

AU - Farry, S.

AU - Gruenewald, M.

AU - Hays, C.

AU - Hunter, R.

AU - Kretzschmar, J.

AU - Lupton, O.

AU - Pili, M.

AU - Ramos Pernas, M.

AU - Tuchming, B.

AU - Vesterinen, M.

AU - Vicini, A.

AU - Wang, C.

AU - Xu, M.

N1 - Submitted to EPJC

PY - 2024/5/2

Y1 - 2024/5/2

N2 - The compatibility of W -boson mass measurements performed by the ATLAS, LHCb, CDF, and D0 experiments is studied using a coherent framework with theory uncertainty correlations. The measurements are combined using a number of recent sets of parton distribution functions (PDF), and are further combined with the average value of measurements from the Large Electron–Positron collider. The considered PDF sets generally have a low compatibility with a suite of global rapidity-sensitive Drell–Yan measurements. The most compatible set is CT18 due to its larger uncertainties. A combination of all m W measurements yields a value of m W = 80,394.6 ± 11.5 MeV with the CT18 set, but has a probability of compatibility of 0.5% and is therefore disfavoured. Combinations are performed removing each measurement individually, and a 91% probability of compatibility is obtained when the CDF measurement is removed. The corresponding value of the W boson mass is 80,369.2 ± 13.3 MeV, which differs by 3.6σ from the CDF value determined using the same PDF set.

AB - The compatibility of W -boson mass measurements performed by the ATLAS, LHCb, CDF, and D0 experiments is studied using a coherent framework with theory uncertainty correlations. The measurements are combined using a number of recent sets of parton distribution functions (PDF), and are further combined with the average value of measurements from the Large Electron–Positron collider. The considered PDF sets generally have a low compatibility with a suite of global rapidity-sensitive Drell–Yan measurements. The most compatible set is CT18 due to its larger uncertainties. A combination of all m W measurements yields a value of m W = 80,394.6 ± 11.5 MeV with the CT18 set, but has a probability of compatibility of 0.5% and is therefore disfavoured. Combinations are performed removing each measurement individually, and a 91% probability of compatibility is obtained when the CDF measurement is removed. The corresponding value of the W boson mass is 80,369.2 ± 13.3 MeV, which differs by 3.6σ from the CDF value determined using the same PDF set.

KW - hep-ex

U2 - 10.1140/epjc/s10052-024-12532-z

DO - 10.1140/epjc/s10052-024-12532-z

M3 - Article

SN - 1434-6044

VL - 84

SP - 1

EP - 23

JO - The European Physical Journal C

JF - The European Physical Journal C

M1 - 451

ER -

Compatibility and combination of world W-boson mass measurements

Abstract

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