A Possibility of large electro-weak penguin contribution in B -> K pi modes

Details A Possibility of large electro-weak penguin contribution in B -> K pi modes A Possibility of large electro-weak penguin contribution in B -> K pi modes

2003-06-17

arxiv.org/abs/hep-ph/0306147v2

Phys.Rev. D68 (2003) 054023

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages, 1 figure, Typos corrected

Scientific paper

10.1103/PhysRevD.68.054023

We discuss about a possibility of large electro-weak penguin contribution in B -> K pi from recent experimental data. The several relations among the branching ratios which realize when the contributions from tree type and electro-weak penguin are small compared with the gluon penguin and can be treated as the expansion parameters do not satisfy the data. The difference comes from the r^2 terms which is the square of the ratio with the gluon penguin and the main contribution comes from electro-weak penguin. We find that the contribution from electro-weak penguin may be large to explain the experimental data. If the magnitude estimated from experiment is quite large compared with the theoretical estimation, then it may be including some new physics effects.

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