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Author  |
LHCb Collaboration (Aaij, R. et al); Fernandez Casani, A.; Jaimes Elles, S.J.; Jashal, B.K.; Libralon, S.; Lucio Martinez, M.; Martinez-Vidal, F.; Mazorra de Cos, J.; Oyanguren, A.; Rebollo De Miguel, M.; Sanderswood, I.; Svintozelskyi, V.; Velilla Serna, J.; Zhuo, J. |
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Title |
Measurement of the W → μν cross-sections as a function of the muon transverse momentum in pp collisions at 5.02 TeV |
Type |
Journal Article |
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Year |
2026 |
Publication |
Journal of High Energy Physics |
Abbreviated Journal |
J. High Energy Phys. |
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Volume |
03 |
Issue |
3 |
Pages |
148 - 37pp |
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Keywords |
Electroweak Interaction; Hadron-Hadron Scattering; Vector Boson Production |
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Abstract |
The pp -> W-+/-(-> mu(+/-) nu(mu)) X cross-sections are measured at a proton-proton centre-of-mass energy root s = 5.02TeV 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 < eta < 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 sigma(W+) (->mu+ (nu) over bar mu) = 300.9 +/- 2.4 +/- 3.8 +/- 6.0 pb, sigma(W-) (->mu- (nu) over bar mu) = 236.9 +/- 2.1 +/- 2.7 +/- 4.7 pb, 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 m(W) = 80369 +/- 130 +/- 33 MeV, where the first uncertainty is experimental and the second is theoretical. |
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Address |
[Bonacci, R. B.; Torres, M. Cruz; Dekkers, S.; Egede, U.; Hadavizadeh, T.; Harris, T. H.; Henderson, R. D. L.; Lane, J. J.; Liu, F. L.; Monk, M.; Song, R.; Walton, E. J.] Monash Univ, Sch Phys & Astron, Melbourne, Vic, Australia |
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Publisher |
Springer |
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Language |
English |
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Notes |
WOS:001740803100001 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
7192 |
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