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Title: Search for Baryon-Number Violating Ξ0b Oscillations
Author: Alfonso Albero, Alejandro
Badalov, Alexey
Calvo Gómez, Míriam
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
Vilasis-Cardona, Xavier
LHCb Collaboration
Keywords: Física de partícules
Particle physics
Issue Date: 3-Nov-2017
Publisher: American Physical Society
Abstract: A search for baryon-number violating Ξ 0 b oscillations is performed with a sample of p p collision data recorded by the LHCb experiment, corresponding to an integrated luminosity of 3     fb − 1 . The baryon number at the moment of production is identified by requiring that the Ξ 0 b come from the decay of a resonance Ξ * − b → Ξ 0 b π − or Ξ ' − b → Ξ 0 b π − , and the baryon number at the moment of decay is identified from the final state using the decays Ξ 0 b → Ξ + c π − , Ξ + c → p K − π + . No evidence of baryon-number violation is found, and an upper limit at the 95% confidence level is set on the oscillation rate of ω < 0.08     ps − 1 , where ω is the associated angular frequency.
Note: Reproducció del document publicat a:
It is part of: Physical Review Letters, 2017, vol. 119, num. 18, p. 181807
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ISSN: 0031-9007
Appears in Collections:Articles publicats en revistes (Electrònica)
Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB))
Articles publicats en revistes (Física Quàntica i Astrofísica)

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