Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/133332
Title: Measurement of CP Violation in the Phase Space of B±→K±π+π− and B±→K±K+K− Decays
Author: Calvo Gómez, Míriam
Camboni, Alessandro
Comerma Montells, Albert
Garrido Beltrán, Lluís
Graciani Díaz, Ricardo
Graugés Pous, Eugeni
Oyanguren Campos, Arantza de
Pérez-Calero Yzquierdo, Antonio
Picatoste Olloqui, Eduardo
Potterat, Cédric
Rives Molina, Vicente José
Ruiz, Hugo (Ruiz Pérez)
Ruiz Valls, Pablo
Vilasis-Cardona, Xavier
LHCb Collaboration
Keywords: Física de partícules
Experiments
Particle physics
Experiments
Issue Date: 3-Sep-2013
Publisher: American Physical Society
Abstract: The charmless decays B ± → K ± π + π − and B ± → K ± K + K − are reconstructed using data, corresponding to an integrated luminosity of 1.0     fb − 1 , collected by LHCb in 2011. The inclusive charge asymmetries of these modes are measured as A C P ( B ± → K ± π + π − ) = 0.032 ± 0.008   ( stat ) ± 0.004   ( syst ) ± 0.007 ( J / ψ K ± ) and A C P ( B ± → K ± K + K − ) = − 0.043 ± 0.009   ( stat ) ± 0.003   ( syst ) ± 0.007 ( J / ψ K ± ) , where the third uncertainty is due to the C P asymmetry of the B ± → J / ψ K ± reference mode. The significance of A C P ( B ± → K ± K + K − ) exceeds three standard deviations and is the first evidence of an inclusive C P asymmetry in charmless three-body B decays. In addition to the inclusive C P asymmetries, larger asymmetries are observed in localized regions of phase space.
Note: Reproducció del document publicat a: https://doi.org/10.1103/PhysRevLett.111.101801
It is part of: Physical Review Letters, 2013, vol. 111, num. 10, p. 101801
URI: http://hdl.handle.net/2445/133332
Related resource: https://doi.org/10.1103/PhysRevLett.111.101801
ISSN: 0031-9007
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

Files in This Item:
File Description SizeFormat 
629023.pdf379.57 kBAdobe PDFView/Open


This item is licensed under a Creative Commons License Creative Commons