ar X iv : h ep - p h / 06 05 09 4 v 2 1 7 M ay 2 00 6 New physics in B → ππ and B →

ar X iv : h ep - p h / 06 05 09 4 v 1 9 M ay 2 00 6 New physics in B → ππ and B → πK decays

We perform a combined analysis of B → ππ and B → πK decays with the current experimental data. Assuming SU(3) flavor symmetry and no new physics contributions to the topological amplitudes, we demonstrate that the conventional parametrization in the Standard Model (SM) does not describe the data very well, in contrast with a similar analysis based on the earlier data. It is also shown that the ...

ar X iv : h ep - p h / 05 03 09 1 v 2 1 1 M ar 2 00 5 Possibility of Large EW Penguin contribution 1

We discuss a possibility of large electroweak (EW) penguin contribution in B → Kπ and ππ. The recent experimental data may be still suggesting that there are some discrepancies between the data and theoretical estimations. In B → Kπ decays, to explain several theoretical relations among the branching ratios, a slightly large electroweak penguin contribution and large strong phase differences or...

ar X iv : h ep - p h / 06 05 13 6 v 1 1 1 M ay 2 00 6 Lepton Flavor Violating τ and μ decays

ar X iv : h ep - p h / 05 03 09 1 v 1 1 0 M ar 2 00 5 Possibility of Large EW Penguin contribution 1

We discuss a possibility of large electroweak (EW) penguin contribution in B → Kπ and ππ. The recent experimental data may be still suggesting that there are some discrepancies between the data and theoretical estimations. In B → Kπ decays, to explain several theoretical relations among the branching ratios, a slightly large electroweak penguin contribution and large strong phase differences or...

ar X iv : h ep - p h / 04 05 11 8 v 1 1 3 M ay 2 00 4 Understanding I = 2 ππ Interaction

A correct understanding and description of the I = 2 ππ S-wave interaction is important for the extraction of the I = 0 ππ S-wave interaction from experimental data and for understanding the I = 0 ππ S-wave interaction theoretically. With t-channel ρ, f 2 (1270) exchange and the ππ → ρρ → ππ box diagram contribution, we reproduce the ππ isotensor S-wave and D-wave scattering phase shifts and in...