Measurement of the dependence of the hadron production fraction ratios fs/fu and fd/fu on B meson kinematic variables in proton-proton collisions at √s = 13 TeV
Visualizar/abrir
Data
2023Tipo
Abstract
The dependence of the ratio between the B0s and B+ hadron production fractions, fs/fu, on the transverse momentum (pT) and rapidity of the B mesons is studied using the decay channels B0s → J/ψϕ and B+ → J/ψK+. The analysis uses a data sample of proton-proton collisions at a center-of-mass energy of 13 TeV, collected by the CMS experiment in 2018 and corresponding to an integrated luminosity of 61.6 fb−1. The fs/fu ratio is observed to depend on the B pT and to be consistent with becoming asymp ...
The dependence of the ratio between the B0s and B+ hadron production fractions, fs/fu, on the transverse momentum (pT) and rapidity of the B mesons is studied using the decay channels B0s → J/ψϕ and B+ → J/ψK+. The analysis uses a data sample of proton-proton collisions at a center-of-mass energy of 13 TeV, collected by the CMS experiment in 2018 and corresponding to an integrated luminosity of 61.6 fb−1. The fs/fu ratio is observed to depend on the B pT and to be consistent with becoming asymptotically constant at large pT. No rapidity dependence is observed. The ratio of the B0 to B+ meson production fractions, fd/fu, is also measured, for the first time in proton-proton collisions, using the B0 → J/ψK*0 decay channel. The result is found to be within 1 standard deviation of unity and independent of pT and rapidity, as expected from isospin invariance. ...
Contido em
Physical review letters. Melville. Vol. 131, no. 12 (Sept. 2023), 121901, 18 p.
Origem
Estrangeiro
Coleções
-
Artigos de Periódicos (39859)Ciências Exatas e da Terra (6073)
Este item está licenciado na Creative Commons License