On the role of the final state interactions in rare B-decays

Details On the role of the final state interactions in rare B-decays On the role of the final state interactions in rare B-decays

2008-07-14

arxiv.org/abs/0807.2126v1

Phys.Atom.Nucl.72:2126-2135,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

19 pages

Scientific paper

10.1134/S1063778809120138

The effects of final state interactions (FSI) in hadronic B-decays are investigated. The model for FSI, based on Regge phenomenology of high-energy hadronic interactions is proposed. It is shown that this model explains the pattern of phases in matrix elements of $B\to\pi\pi$ and $B\to\rho\rho$ decays. These phases play an important role for CP-violation in B-decays. The most precise determination of the unitarity triangle angle $\alpha$ from $B_d\to \rho\pi$ decays is performed. The relation between CP-asymmetries in $B\to K\pi$ decays is discussed. It is emphasized that the large distance FSI can explain the structure of polarizations of the vector mesons in B-decays and other puzzles like a very large branching ratio of the B-decay to $\bar\Xi_c\Lambda_c$.

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