CKM angles from non-leptonic B decays using SU(3) flavour symmetry

Details CKM angles from non-leptonic B decays using SU(3) flavour symmetry CKM angles from non-leptonic B decays using SU(3) flavour symmetry

2003-11-04

arxiv.org/abs/hep-ph/0311042v1

Eur.Phys.J.C33:s364-s366,2004

Physics

High Energy Physics

High Energy Physics - Phenomenology

3 pages, 2 figures, Invited talk given at International Europhysics Conference on High-Energy Physics (HEP 2003), Aachen, Germ

Scientific paper

10.1140/epjcd/s2003-03-312-1

We discuss the determination of the CKM angles gamma and alpha using recent data from non-leptonic B decays together with flavour symmetries. Penguin effects are controlled by means of the CP-averaged branching ratio B_d \to \pi^\pm K^\mp. The information from A_{CP}(B_d \to J/\Psi K_S) (two solutions for phi_d), Rb and gamma allow us to determine beta, even in presence of New Physics not affecting Delta B=1 amplitudes. In this context we address the question of to what extent there is still space for New Physics.

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