%0 Journal Article
%T Precise measurement of the f(s)/f(d) ratio of fragmentation fractions and of B-s(0) decay branching fractions
%A LHCb Collaboration (Aaij, R. et al
%A Henry, L.
%A Jashal, B. K.
%A Martinez-Vidal, F.
%A Oyanguren, A.
%A Remon Alepuz, C.
%A Ruiz Vidal, J.
%J Physical Review D
%D 2021
%V 104
%N 3
%I Amer Physical Soc
%@ 2470-0010
%G English
%F LHCbCollaborationAaij_etal2021
%O WOS:000686913600001
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=4947), last updated on Wed, 08 Sep 2021 16:57:45 +0000
%X The ratio of the B-s(0) and B-0 fragmentation fractions, f(s)/f(d), in proton-proton collisions at the LHC, is obtained as a function of B-meson transverse momentum and collision center-of-mass energy from the combined analysis of different B-decay channels measured by the LHCb experiment. The results are described by a linear function of the meson transverse momentum or with a function inspired by Tsallis statistics. Precise measurements of the branching fractions of the B-s(0) -> J/psi phi and B-s(0)-> D-s(-)pi(+) decays are performed, reducing their uncertainty by about a factor of 2 with respect to previous world averages. Numerous B-s(0) decay branching fractions, measured at the LHCb experiment, are also updated using the new values of f(s)/f(d) and branching fractions of normalization channels. These results reduce a major source of systematic uncertainty in several searches for new physics performed through measurements of B-s(0) branching fractions.
%R 10.1103/PhysRevD.104.032005
%U https://arxiv.org/abs/2103.06810
%U https://doi.org/10.1103/PhysRevD.104.032005
%P 032005-20pp