Please use this identifier to cite or link to this item:
https://hdl.handle.net/2445/133579
Title: | Measurements of B+c Production and Mass with the B+c→J/ψπ+ Decay |
Author: | Abellan Beteta, Carlos Calvo Gómez, Míriam Camboni, Alessandro Comerma Montells, Albert Domingo Bonal, Francesc Garrido Beltrán, Lluís Grabalosa Gándara, Marc Graciani Díaz, Ricardo Graugés Pous, Eugeni López Asamar, Elias Pérez-Calero Yzquierdo, Antonio Picatoste Olloqui, Eduardo Pie Valls, B. (Blai) Potterat, Cédric Rives Molina, Vicente José Ruiz, Hugo (Ruiz Pérez) Vázquez Gómez, Ricard Vilasis-Cardona, Xavier LHCb Collaboration |
Keywords: | Física de partícules Experiments Particle physics Experiments |
Issue Date: | 5-Dec-2012 |
Publisher: | American Physical Society |
Abstract: | Measurements of B + c production and mass are performed with the decay mode B + c → J / ψ π + using 0.37 fb − 1 of data collected in p p collisions at √ s = 7 TeV by the LHCb experiment. The ratio of the production cross section times branching fraction between the B + c → J / ψ π + and the B + → J / ψ K + decays is measured to be ( 0.68 ± 0.10 ( stat ) ± 0.03 ( syst ) ± 0.05 ( lifetime ) ) % for B + c and B + mesons with transverse momenta p T > 4 GeV / c and pseudorapidities 2.5 < η < 4.5 . The B + c mass is directly measured to be 6273.7 ± 1.3 ( stat ) ± 1.6 ( syst ) MeV / c 2 , and the measured mass difference with respect to the B + meson is M ( B + c ) − M ( B + ) = 994.6 ± 1.3 ( stat ) ± 0.6 ( syst ) MeV / c 2 . |
Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevLett.109.232001 |
It is part of: | Physical Review Letters, 2012, vol. 109, num. 23, p. 232001 |
URI: | https://hdl.handle.net/2445/133579 |
Related resource: | https://doi.org/10.1103/PhysRevLett.109.232001 |
ISSN: | 0031-9007 |
Appears in Collections: | Articles publicats en revistes (Enginyeria Electrònica i Biomèdica) Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB)) Articles publicats en revistes (Física Quàntica i Astrofísica) |
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