A novel observable for CP violation in multi-body decays and its application potential to charm and beauty meson decays

Autor: Zhen-Hua Zhang
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Physics Letters B, Vol 820, Iss , Pp 136537- (2021)
Druh dokumentu: article
ISSN: 0370-2693
DOI: 10.1016/j.physletb.2021.136537
Popis: A novel observable measuring the CP asymmetry in multi-body decays of heavy mesons, which is called the forward-backward asymmetry induced CP asymmetry (FBI-CPA), ACPFB, is introduced. This observable has the dual advantages that 1) it can isolate the CP asymmetry associated with the interference of the S- and P-wave amplitude from that associated with the S- or P-wave amplitude alone; 2) it can effectively almost double the statistics comparing to the conventionally defined regional CP asymmetry. We also suggest to perform the measurements of FBI-CPA in some three-body decay channels of charm and beauty mesons.
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