CP violation in $B \to PP$ in the SM with SU(3) symmetry

Details CP violation in $B \to PP$ in the SM with SU(3) symmetry CP violation in $B \to PP$ in the SM with SU(3) symmetry

2002-06-21

arxiv.org/abs/hep-ph/0206199v1

Chin.J.Phys. 41 (2003) 601-617

Physics

High Energy Physics

High Energy Physics - Phenomenology

24 pages, 2 figures

Scientific paper

In this paper we study CP violation in $B\to PP$ decays in the Standard Model using SU(3) flavor symmetry. With SU(3) symmetry only seven hadronic parameters are needed to describe $B\to PP$ decays in the SM when annihilation contributions are neglected. The relevant hadronic parameters can be determined using known experimental data from $B\to \pi\pi$ and $B\to K \pi$. We predict branching ratios and CP asymmetries for some of the unmeasured $B \to PP$ decays. Some of the CP asymmetries can be large and measured at B factories. The effects of annihilation contributions can also be studied using present experimental data. Inclusion of annihilation contributions introduces six more hadronic parameters. We find that annihilation contributions are in general small, but can have significant effects on CP asymmetries and some $B_s \to PP$.

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