منابع مشابه
Weak Phase γ and Strong Phase δ from CP Averaged B → ππ and πK Decays
Assuming SU(3) symmetry for the strong phases in the four decay modes B → π−π+, π0π+, π−K+, π−K̄0 and ignoring the relative small electroweak penguin effects in those decays, the weak phase γ and the strong phase δ can be determined in a model independent way by the CP-averaged branching ratios of the four decay modes. It appears that the current experimental data for B → ππ and πK decays prefer...
متن کامل0 Weak Phase γ and Strong Phase δ from CP Averaged B → ππ and πK Decays
Assuming SU(3) symmetry for the strong phases in the four decay modes B → π−π+, π0π+, π−K+, π−K̄0 and ignoring the relative small electroweak penguin effects in those decays, the weak phase γ and the strong phase δ can be determined in a model independent way by the CP-averaged branching ratios of the four decay modes. It appears that the current experimental data for B → ππ and πK decays prefer...
متن کاملModel - Independent Analysis of B → πK Decays and Bounds on the Weak Phase γ
A general parametrization of the amplitudes for the rare two-body decays B → πK is introduced, which makes maximal use of theoretical constraints arising from flavour symmetries of the strong interactions and the structure of the low-energy effective weak Hamiltonian. With the help of this parametrization, a model-independent analysis of the branching ratios and direct CP asymmetries in the var...
متن کاملthe CKM Angle γ with B → πK Decays
The decays B → πK and Bd → πK were observed by the CLEO collaboration last year; they may play an important role to probe the angle γ of the unitarity triangle of the CKM matrix. After a general parametrization of their decay amplitudes within the Standard Model, strategies to constrain and determine the CKM angle γ with the help of the corresponding CP-conserving and CP-violating observables a...
متن کاملDetermination of the Weak Phase γ from Rate Measurements in B ± → πK , ππ Decays
A method is described which, under the assumption of SU(3) symmetry, allows one to determine the angle γ = Arg(V ∗ ub) of the unitarity triangle from timeindependent measurements of the branching ratios for the rare two-body decays B+ → π0K+ and B → π0K−, as well as of the CP-averaged branching ratios for the decays B → π±K0 and B → π±π0, all of which are of order 10−5. The effects of electrowe...
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ژورنال
عنوان ژورنال: Nuclear Physics B - Proceedings Supplements
سال: 2001
ISSN: 0920-5632
DOI: 10.1016/s0920-5632(01)01167-7