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http://hdl.handle.net/2445/186498
Title: | Observation of charmless baryonic decays B(s) 0→p p ¯h+h'- |
Author: | Camboni, Alessandro Coquereau, Samuel Fernandez, G. Garrido Beltrán, Lluís Gascón Fora, David Graciani Díaz, Ricardo Graugés Pous, Eugeni Marin Benito, Carla Picatoste Olloqui, Eduardo Rives Molina, Vicente José Sanchez Gonzalo, D. 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: | Sep-2017 |
Publisher: | American Physical Society |
Abstract: | Decays of B0 and Bs0 mesons to the charmless baryonic final states p p ¯h+h'-, where h and h' each denote a kaon or a pion, are searched for using the LHCb detector. The analysis is based on a sample of proton-proton collision data collected at center-of-mass energies of 7 and 8 TeV, corresponding to an integrated luminosity of 3 fb-1 . Four-body charmless baryonic Bs0 decays are observed for the first time. The decays Bs0→p p ¯K+K-, Bs0→p p ¯K±π∓, B0→p p ¯K±π∓ and B0→p p ¯π+π- are observed with a significance greater than 5 standard deviations; evidence at 4.1 standard deviations is found for the B0→p p ¯K+K- decay and an upper limit is set on the branching fraction for Bs0→p p ¯π+π-. Branching fractions in the kinematic region m (p p ¯ )<2850 MeV /c2 are measured relative to the B0→J /ψ (→p p ¯)K*(892 )0 channel. |
Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevD.96.051103 |
It is part of: | Physical Review D, 2017, vol. 96, num. 051103, p. 1-10 |
URI: | http://hdl.handle.net/2445/186498 |
Related resource: | https://doi.org/10.1103/PhysRevD.96.051103 |
ISSN: | 2470-0010 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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