The B -> pi pi, pi K Puzzles: Implications for Hadron Physics, New Physics and Rare Decays

Details The B -> pi pi, pi K Puzzles: Implications for Hadron Physics, New Physics and Rare Decays The B -> pi pi, pi K Puzzles: Implications for Hadron Physics, New Physics and Rare Decays

2005-07-13

arxiv.org/abs/hep-ph/0507156v1

Int.J.Mod.Phys. A21 (2006) 664-671

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, 2 figures, plenary talk at the International Conference on QCD and Hadronic Physics, Peking University, Beijing, Chi

Scientific paper

10.1142/S0217751X06031867

The B-meson system is an interesting probe for the exploration of strong interactions, the quark-flavour sector of the Standard Model, and the search for new physics. In this programme, non-leptonic B decays, which are particularly challenging from the point of view of QCD, play a key role. After discussing strategies to deal with the corresponding hadronic matrix elements of four-quark operators and popular avenues for new physics to manifest itself in B decays, we focus on puzzling patterns in the B-factory data for B -> pi pi, pi K decays; we explore their implications for hadron physics, new physics and rare K and B decays.

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