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Title: | Measurement of the (B)over-bar(0)-B-0 and (B)over-bars(0)-B-s(0) production asymmetries in pp collisions at root s=7 TeV |
Author: | Garrido Beltrán, Lluís Graciani Díaz, Ricardo Graugés Pous, Eugeni Marin Benito, Carla Picatoste Olloqui, E. Rives Molina, V. Ruiz, H. LHCb Collaboration |
Keywords: | Hadrons Gran Col·lisionador d'Hadrons Física de partícules Experiments Hadrons Large Hadron Collider (France and Switzerland) Particle physics Experiments |
Issue Date: | Dec-2014 |
Publisher: | Elsevier B.V. |
Abstract: | The B0 − B0 and B0 s − B0 s production asymmetries, AP(B0 ) and AP(B0 s ), are measured by means of a time-dependent analysis of B0 → J/ψK∗0 , B0 → D−π + and B0 s → D− s π + decays, using a data sample corresponding to an integrated luminosity of 1.0 fb−1 , collected by LHCb in pp collisions at a centre-of-mass energy of 7 TeV. The measurements are performed as a function of transverse momentum and pseudorapidity of the B0 and B0 s mesons within the LHCb acceptance. The production asymmetries, integrated over pT and η in the range 4 < pT < 30 GeV/c and 2.5 < η < 4.5, are determined to be AP(B0 ) = (−0.35 ± 0.76 ± 0.28)% and AP(B0 s ) = (1.09 ± 2.61 ± 0.66)%, where the first uncertainties are statistical and the second systematic. |
Note: | Reproducció del document publicat a: https://doi.org/10.1016/j.physletb.2014.10.005 |
It is part of: | Physics Letters B, 2014, vol. 739, p. 218-228 |
URI: | http://hdl.handle.net/2445/185613 |
Related resource: | https://doi.org/10.1016/j.physletb.2014.10.005 |
ISSN: | 0370-2693 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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