Measurement of the W → μν cross-sections as a function of the muon transverse momentum in pp collisions at 5.02 TeV

The LHCb collaboration

doi:10.1007/JHEP03(2026)148

Measurement of the W → μν cross-sections as a function of the muon transverse momentum in pp collisions at 5.02 TeV

The LHCb collaboration

National Institute for Subatomic Physics
University of Warwick
University of Zurich
University of Liverpool
Syracuse University
Instituto Galego de Física de Altas Enerxías (IGFAE)
University of Bristol
Uppsala University
Université Paris-Saclay
University of Michigan, Ann Arbor
Université Clermont Auvergne
National Institute for Nuclear Physics
TU Dortmund University
Vilnius University
CERN
University of Cambridge
Sorbonne Université
Universidade Federal do Rio de Janeiro
Peking University
University of A Coruna
University of Chinese Academy of Sciences
Consejo Nacional de Rectores (CONARE)
CPPM
Swiss Federal Institute of Technology Lausanne
Massachusetts Institute of Technology
Laboratoire Leprince-Ringuet
University of Oxford
Heidelberg University
Ruhr University Bochum
Centro Brasileiro de Pesquisas Físicas
Pontifícia Universidade Católica do Rio de Janeiro
University of Manchester
University of Edinburgh
AGH University of Krakow
CAS - Institute of High Energy Physics
Ramon Llull University
Kyiv National Taras Shevchenko University
Henryk Niewodniczanski Institute of Nuclear Physics of the Polish Academy of Sciences
University of Bonn
Imperial College London
Université Savoie Mont Blanc
Los Alamos National Laboratory
Maastricht University
Monash University
Cracow University of Technology
Ohio State University
Wuhan University
University of Barcelona
Tsinghua University
Eötvös Loránd University
NASU - Institute of Nuclear Research
Horia Hulubei National Institute of Physics and Nuclear Engineering
University of Glasgow
University of Cincinnati
Hunan University
University of Groningen
Central China Normal University
University College Dublin
South China Normal University
Rutherford Appleton Laboratory
University of Valencia
University of Maryland, College Park
NASU - Kharkov Institute of Physics and Technology
University of Freiburg
National Centre for Nuclear Research
RWTH Aachen University
Universidad Nacional de Colombia
University of Birmingham
Vrije Universiteit Amsterdam
Henan Normal University
Lanzhou University
Max Planck Institute for Nuclear Physics
Universidad Andrés Bello

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Resumen

The pp → W^±(→ μ^±ν_μ)X cross-sections are measured at a proton-proton centre-of-mass energy s=5.02 TeV using a dataset corresponding to an integrated luminosity of 100 pb⁻¹ recorded by the LHCb experiment. Considering muons in the pseudorapidity range 2.2 < η < 4.4, the cross-sections are measured differentially in twelve intervals of muon transverse momentum between 28 < p_T< 52 GeV. Integrated over p_T, the measured cross-sections are (Formula presented.) where the first uncertainties are statistical, the second are systematic, and the third are associated with the luminosity calibration. These integrated results are consistent with theoretical predictions. This analysis introduces a new method to determine the W-boson mass using the measured differential cross-sections corrected for detector effects. The measurement is performed on this statistically limited dataset as a proof of principle and yields (Formula presented.) where the first uncertainty is experimental and the second is theoretical.

Idioma original	Inglés
Número de artículo	148
Publicación	Journal of High Energy Physics
Volumen	2026
N.º	3
DOI	https://doi.org/10.1007/JHEP03(2026)148
Estado	Publicada - mar 2026
Publicado de forma externa	Sí

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10.1007/JHEP03(2026)148

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@article{50f6aec0d1eb4650acdf9ad4ce12a8e9,

title = "Measurement of the W → μν cross-sections as a function of the muon transverse momentum in pp collisions at 5.02 TeV",

abstract = "The pp → W±(→ μ±νμ)X cross-sections are measured at a proton-proton centre-of-mass energy s=5.02 TeV using a dataset corresponding to an integrated luminosity of 100 pb−1 recorded by the LHCb experiment. Considering muons in the pseudorapidity range 2.2 < η < 4.4, the cross-sections are measured differentially in twelve intervals of muon transverse momentum between 28 < pT< 52 GeV. Integrated over pT, the measured cross-sections are (Formula presented.) where the first uncertainties are statistical, the second are systematic, and the third are associated with the luminosity calibration. These integrated results are consistent with theoretical predictions. This analysis introduces a new method to determine the W-boson mass using the measured differential cross-sections corrected for detector effects. The measurement is performed on this statistically limited dataset as a proof of principle and yields (Formula presented.) where the first uncertainty is experimental and the second is theoretical.",

keywords = "Electroweak Interaction, Hadron-Hadron Scattering, Vector Boson Production",

author = "\{The LHCb collaboration\} and R. Aaij and Abdelmotteleb, \{A. S.W.\} and \{Abellan Beteta\}, C. and F. Abudin{\'e}n and T. Ackernley and Adefisoye, \{A. A.\} and B. Adeva and M. Adinolfi and P. Adlarson and C. Agapopoulou and Aidala, \{C. A.\} and Z. Ajaltouni and S. Akar and K. Akiba and P. Albicocco and J. Albrecht and R. Aleksiejunas and F. Alessio and \{Alvarez Cartelle\}, P. and R. Amalric and S. Amato and Amey, \{J. L.\} and Y. Amhis and L. An and L. Anderlini and M. Andersson and P. Andreola and M. Andreotti and \{Andres Estrada\}, S. and A. Anelli and D. Ao and C. Arata and F. Archilli and Z. Areg and M. Argenton and \{Arguedas Cuendis\}, S. and L. Arnone and A. Artamonov and M. Artuso and E. Aslanides and \{Ata{\'i}de Da Silva\}, R. and M. Atzeni and B. Audurier and Authier, \{J. A.\} and D. Bacher and \{Bachiller Perea\}, I. and S. Bachmann and M. Bachmayer and Back, \{J. J.\} and \{Calderon Ramirez\}, S.",

note = "Publisher Copyright: {\textcopyright} The Author(s) 2026.",

year = "2026",

month = mar,

doi = "10.1007/JHEP03(2026)148",

language = "Ingl{\'e}s",

volume = "2026",

journal = "Journal of High Energy Physics",

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T1 - Measurement of the W → μν cross-sections as a function of the muon transverse momentum in pp collisions at 5.02 TeV

AU - The LHCb collaboration

AU - Aaij, R.

AU - Abdelmotteleb, A. S.W.

AU - Abellan Beteta, C.

AU - Abudinén, F.

AU - Ackernley, T.

AU - Adefisoye, A. A.

AU - Adeva, B.

AU - Adinolfi, M.

AU - Adlarson, P.

AU - Agapopoulou, C.

AU - Aidala, C. A.

AU - Ajaltouni, Z.

AU - Akar, S.

AU - Akiba, K.

AU - Albicocco, P.

AU - Albrecht, J.

AU - Aleksiejunas, R.

AU - Alessio, F.

AU - Alvarez Cartelle, P.

AU - Amalric, R.

AU - Amato, S.

AU - Amey, J. L.

AU - Amhis, Y.

AU - An, L.

AU - Anderlini, L.

AU - Andersson, M.

AU - Andreola, P.

AU - Andreotti, M.

AU - Andres Estrada, S.

AU - Anelli, A.

AU - Ao, D.

AU - Arata, C.

AU - Archilli, F.

AU - Areg, Z.

AU - Argenton, M.

AU - Arguedas Cuendis, S.

AU - Arnone, L.

AU - Artamonov, A.

AU - Artuso, M.

AU - Aslanides, E.

AU - Ataíde Da Silva, R.

AU - Atzeni, M.

AU - Audurier, B.

AU - Authier, J. A.

AU - Bacher, D.

AU - Bachiller Perea, I.

AU - Bachmann, S.

AU - Bachmayer, M.

AU - Back, J. J.

AU - Calderon Ramirez, S.

PY - 2026/3

Y1 - 2026/3

N2 - The pp → W±(→ μ±νμ)X cross-sections are measured at a proton-proton centre-of-mass energy s=5.02 TeV using a dataset corresponding to an integrated luminosity of 100 pb−1 recorded by the LHCb experiment. Considering muons in the pseudorapidity range 2.2 < η < 4.4, the cross-sections are measured differentially in twelve intervals of muon transverse momentum between 28 < pT< 52 GeV. Integrated over pT, the measured cross-sections are (Formula presented.) where the first uncertainties are statistical, the second are systematic, and the third are associated with the luminosity calibration. These integrated results are consistent with theoretical predictions. This analysis introduces a new method to determine the W-boson mass using the measured differential cross-sections corrected for detector effects. The measurement is performed on this statistically limited dataset as a proof of principle and yields (Formula presented.) where the first uncertainty is experimental and the second is theoretical.

AB - The pp → W±(→ μ±νμ)X cross-sections are measured at a proton-proton centre-of-mass energy s=5.02 TeV using a dataset corresponding to an integrated luminosity of 100 pb−1 recorded by the LHCb experiment. Considering muons in the pseudorapidity range 2.2 < η < 4.4, the cross-sections are measured differentially in twelve intervals of muon transverse momentum between 28 < pT< 52 GeV. Integrated over pT, the measured cross-sections are (Formula presented.) where the first uncertainties are statistical, the second are systematic, and the third are associated with the luminosity calibration. These integrated results are consistent with theoretical predictions. This analysis introduces a new method to determine the W-boson mass using the measured differential cross-sections corrected for detector effects. The measurement is performed on this statistically limited dataset as a proof of principle and yields (Formula presented.) where the first uncertainty is experimental and the second is theoretical.

KW - Electroweak Interaction

KW - Hadron-Hadron Scattering

KW - Vector Boson Production

UR - https://www.scopus.com/pages/publications/105035313292

U2 - 10.1007/JHEP03(2026)148

DO - 10.1007/JHEP03(2026)148

M3 - Artículo

AN - SCOPUS:105035313292

SN - 1029-8479

VL - 2026

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 3

M1 - 148

ER -

Measurement of the W → μν cross-sections as a function of the muon transverse momentum in pp collisions at 5.02 TeV

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