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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

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

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Author(s):
Alvarenga Nogueira, J. H. [1] ; Bediaga, I. [2] ; Cavalcante, A. B. R. [2] ; Frederico, T. [1] ; Lourenco, O. [3]
Total Authors: 5
Affiliation:
[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
Total Affiliations: 3
Document type: Journal article
Source: Physical Review D; v. 92, n. 5 SEP 9 2015.
Web of Science Citations: 15
Abstract

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)

FAPESP's process: 13/26258-4 - Superdense matter in the universe
Grantee:Manuel Máximo Bastos Malheiro de Oliveira
Support type: Research Projects - Thematic Grants
FAPESP's process: 14/19094-8 - Three-body heavy meson decay and CP violation
Grantee:Jorge Henrique de Alvarenga Nogueira
Support type: Scholarships in Brazil - Doctorate (Direct)