Direct C P violation in charmless three-body decays of B± mesons
Abstract
Measurements of C P 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 C P asymmetry in B±→π±K+K- decays is confirmed, and C P asymmetries are observed with a significance of more than five standard deviations in the B±→π±π+π- and B±→K±K+K- decays, while the C P asymmetry of B±→K±π+π- 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±→π±χc 0(1 P ) in both B±→π±π+π- and B±→π±K+K- decays is observed, as is C P violation involving these amplitudes.
- Publication:
-
Physical Review D
- Pub Date:
- July 2023
- DOI:
- 10.1103/PhysRevD.108.012008
- arXiv:
- arXiv:2206.07622
- Bibcode:
- 2023PhRvD.108a2008A
- Keywords:
-
- High Energy Physics - Experiment
- E-Print:
- All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2021-049.html (LHCb public pages)