%0 Journal Article
%T Measurement of b hadron fractions in 13 TeV pp collisions
%A LHCb Collaboration (Aaij, R. et al
%A Garcia Martin, L. M.
%A Henry, L.
%A Jashal, B. K.
%A Martinez-Vidal, F.
%A Oyanguren, A.
%A Remon Alepuz, C.
%A Ruiz Vidal, J.
%A Sanchez Mayordomo, C.
%J Physical Review D
%D 2019
%V 100
%N 3
%I Amer Physical Soc
%@ 2470-0010
%G English
%F LHCbCollaborationAaij_etal2019
%O WOS:000482854000001
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=4125), last updated on Thu, 12 Sep 2019 02:39:22 +0000
%X The production fractions of (B) over bar (0)(s) and Lambda(0)(b) hadrons, normalized to the sum of B- and (B) over bar (0) fractions, arc measured in 13 TeV pp collisions using data collected by the LHCb experiment, corresponding to an integrated luminosity of 1.67 fb(-1). These ratios, averaged over the b hadron transverse momenta from 4 to 25 GeV and pseudorapidity from 2 to 5, are 0.122 +/- 0.006 for (B) over bar (0)(s) and 0.259 +/- 0.018 for Lambda(0)(b) where the uncertainties arise from both statistical and systematic sources. The Lambda(0)(b) ratio depends strongly on transverse momentum, while the (B) over bar (0)(s) ratio shows a mild dependence. Neither ratio shows variations with pseudorapidity. The measurements are made using semileptonic decays to minimize theoretical uncertainties. In addition, the ratio of D+ to D-0 mesons produced in the sum of (B) over bar (0) and B- semileptonic decays is determined as 0.359 +/- 0.006 +/- 0.009, where the uncertainties are statistical and systematic.
%R 10.1103/PhysRevD.100.031102
%U https://arxiv.org/abs/1902.06794
%U https://doi.org/10.1103/PhysRevD.100.031102
%P 031102-11pp