Direct CP violation in charmless three-body decays of B± mesons

LHCb collaboration

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

Measurements of CP asymmetries in charmless three-body decays of B± mesons are reported using proton-proton collision data collected by the LHCb detector, corresponding to an integrated luminosity of 5.9 fb-1. The previously observed CP asymmetry in B±?p±K+K- decays is confirmed, and CP asymmetries are observed with a significance of more than five standard deviations in the B±?p±p+p- and B±?K±K+K- decays, while the CP asymmetry of B±?K±p+p- decays is confirmed to be compatible with zero. The distributions of these asymmetries are also studied as a function of the three-body phase space and suggest contributions from rescattering and resonance interference processes. An indication of the presence of the decays B±?p±?c0(1P) in both B±?p±p+p- and B±?p±K+K- decays is observed, as is CP violation involving these amplitudes.
Original languageEnglish
Article number012008
JournalPhysical Review D
Volume108
Issue number1
DOIs
Publication statusPublished - 1 Jul 2023

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