Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/133200
Title: First Observation of a Baryonic B+c Decay
Author: Badalov, Alexey
Calvo Gómez, Míriam
Garrido Beltrán, Lluís
Graciani Díaz, Ricardo
Graugés Pous, Eugeni
Marin Benito, Carla
Picatoste Olloqui, Eduardo
Rives Molina, Vicente José
Ruiz, Hugo (Ruiz Pérez)
Vilasis-Cardona, Xavier
LHCb Collaboration
Keywords: Física de partícules
Experiments
Particle physics
Experiments
Issue Date: 10-Oct-2014
Publisher: American Physical Society
Abstract: A baryonic decay of the B + c meson, B + c → J / ψ p ¯ p π + , is observed for the first time, with a significance of 7.3 standard deviations, in p p collision data collected with the LHCb detector and corresponding to an integrated luminosity of 3.0     fb − 1 taken at center-of-mass energies of 7 and 8 TeV. With the B + c → J / ψ π + decay as the normalization channel, the ratio of branching fractions is measured to be B ( B + c → J / ψ p ¯ p π + ) / B ( B + c → J / ψ π + ) = 0.14 3 + 0.039 − 0.034 ( stat ) ± 0.013 ( syst ) . The mass of the B + c meson is determined as M ( B + c ) = 6274.0 ± 1.8 ( stat ) ± 0.4 ( syst )     MeV / c 2 , using the B + c → J / ψ p ¯ p π + channel.
Note: Reproducció del document publicat a: https://doi.org/10.1103/PhysRevLett.113.152003
It is part of: Physical Review Letters, 2014, vol. 113, num. 15, p. 152003
URI: http://hdl.handle.net/2445/133200
Related resource: https://doi.org/10.1103/PhysRevLett.113.152003
ISSN: 0031-9007
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

Files in This Item:
File Description SizeFormat 
645736.pdf256.72 kBAdobe PDFView/Open


This item is licensed under a Creative Commons License Creative Commons