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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

CP violation: Dalitz interference, CPT, and final state interactions

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Autor(es):
Alvarenga Nogueira, J. H. [1] ; Bediaga, I. [2] ; Cavalcante, A. B. R. [2] ; Frederico, T. [1] ; Lourenco, O. [3]
Número total de Autores: 5
Afiliação do(s) autor(es):
[1] Inst Tecnol Aeronaut, DCTA, BR-12228900 Sao Paulo - Brazil
[2] Ctr Brasileiro Pesquisas Fis, BR-22290180 Rio De Janeiro, RJ - Brazil
[3] Univ Fed Sao Carlos, CCA, Dept Ciencias Nat Matemat & Educ, BR-13600970 Sao Paulo - Brazil
Número total de Afiliações: 3
Tipo de documento: Artigo Científico
Fonte: Physical Review D; v. 92, n. 5 SEP 9 2015.
Citações Web of Science: 15
Resumo

Resonances and final state interactions (FSI) play a role in the formation of charge parity (CP) violation (CPV) constrained by CPT invariance. We provide a general formulation of CPV including resonances and FSI starting from the CPT constraint. Our discussion is elaborated within a simple B decay model with the rho and f(0)(980) resonances plus a nonresonant background including the pi pi -> KK coupled amplitude. We consider a few illustrative examples to show the interference patterns appearing in the CP asymmetry, namely, that from the. resonance plus a nonresonant amplitude, and that from the interference of the. and f (0)(980) resonances. We perform the fit of the CP asymmetry for the charmless three-body B-+/- decay channel B+ -> pi(+)pi(+)pi(-) and obtain as outcome the B+ -> pi+K+K- for pp channel asymmetry in the mass region below 1.6 GeV in fair agreement with the new LHCb data. Analogously, we also describe the CP asymmetry of the B-+/- -> K-+/-pi(+)pi(-) decay, with that from the B-+/- -> (KK+K-)-K-+/- channel obtained as output. As in the previous case, we also found agreement with LHCb experimental data. (AU)

Processo FAPESP: 13/26258-4 - Matéria superdensa no universo
Beneficiário:Manuel Máximo Bastos Malheiro de Oliveira
Linha de fomento: Auxílio à Pesquisa - Temático
Processo FAPESP: 14/19094-8 - Decaimentos de mésons pesados em três corpos e violação CP
Beneficiário:Jorge Henrique de Alvarenga Nogueira
Linha de fomento: Bolsas no Brasil - Doutorado Direto