Isospin Amplitude Analysis of B → Ππ Decays within the Standard Model
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چکیده
Taking into account the recent measurements of the branching ratios and CP asymmetries in the B → ππ decays by the BABAR and BELLE collaborations, an amplitude analysis based on the isospin symmetry is reported. These data allow to get an independent determination of the CKM unitarity-triangle angle γ. One of the best-fit solutions gives the range γ = (65 ± 5) • , in excellent agreement with the global CKM fit within the Standard Model. The other parameters from this fit confirm the earlier analyses that the data on B → ππ decays require various topological amplitudes (neglecting the electroweak ones) to be of comparable magnitude with large strong-phase differences.
منابع مشابه
For Publisher’s use ISOSPIN AMPLITUDE ANALYSIS OF B → ππ DECAYS WITHIN THE STANDARD MODEL
Taking into account the recent measurements of the branching ratios and CP asymmetries in the B → ππ decays by the BABAR and BELLE collaborations, an amplitude analysis based on the isospin symmetry is reported. These data allow to get an independent determination of the CKM unitarity-triangle angle γ. One of the best-fit solutions gives the range γ = (65 ± 5) • , in excellent agreement with th...
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تاریخ انتشار 2004