Analytic Resolution of Puzzle in $B\to K π$ decays

Details Analytic Resolution of Puzzle in $B\to K π$ decays Analytic Resolution of Puzzle in $B\to K π$ decays

2007-07-19

arxiv.org/abs/0707.2967v3

Phys.Lett.B665:231-236,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

17 pages, 3 figures, The title has been also changed

Scientific paper

10.1016/j.physletb.2008.06.015

We present a systematic method to extract each standard model (SM)-{\it like} hadronic parameter as well as new physics parameters in analytic way for $B\to K\pi$ decays. Using the analytic method to the currently available experimental data, we find two possible solutions analytically equivalent: one showing the large SM-{\it like} color-suppressed tree contribution and the other showing the large SM-{\it like} EWP contribution. The magnitude of the NP amplitude and its weak phase are quite large. For instance, we find $|P^{NP}/P| = 0.39\pm0.13$, $\phi^{NP}=91^\circ\pm15^\circ$ and $\delta^{NP}=8^\circ\pm27^\circ$, which are the ratio of the NP-to-SM contribution, the weak and the relative strong phase of the NP amplitude, respectively.

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