Charmless Three-Body B-decays: final state interaction and CP violation

8th International Workshop on Hadron Physics

Alvarenga Nogueira, J.H.^1 ; Bediaga, I.^2 ; Cavalcante, A.B.R.^2 ; Frederico, T.^1 ; Lourenço, O.^3

Departamento de Física, Instituto Tecnológico de Aeronáutica, São José dos Campos

12228-900, Brazil^1

Centro Brasileiro de Pesquisas Físicas, Rio de Janeiro, RJ

22290-180, Brazil^2

Departamento de Ciências da Natureza, Matemática e Educaão, CCA, Universidade Federal de São Carlos, Araras, SP

13600-970, Brazil^3

关键词: Charge-parity violations;    Coupled channels;    CP asymmetries;    CP violations;    Final state interactions;    Resonant contribution;    Strong interaction;    Three body;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/706/4/042010/pdf
DOI  :  10.1088/1742-6596/706/4/042010

来源: IOP

【 摘 要 】

We obtain an explicit expression for the charge-parity violation (CPV) considering final state interactions (FSI) and the ρ(770) and f0(980) resonances in the B±→ π±π+π-decay. In addition, we investigate the channel coupled by the strong interaction B±→ π±K+K-. dictated by the CPT constraint. We use our model to fit experimental data of such decays [1], For the interfering resonant contributions to the CP asymmetry, we show that locally CPT constraint seems to be valid in the B±→ π±π+π-channel. Our work suggests, in agreement with the CPT constraint, that the CP asymmetry in coupled channels are related and have opposite signs. Our formula for the CP asymmetry fairly fit the LHCb data improving our understanding of the interplay between the FSI and CP violation. For more complete and detailed studies for the channels K±K+K-, K±π+π-, π±K+K-and π±π+π-see Ref. [2],