Indication for Large Rescatterings in Charmless Rare B Decays

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  • 1 October 2002
Abstract
The current wealth of charmless B decay data imply the presence of final state rescattering. Good fits are found with factorized amplitudes plus two SU(3) rescattering phase differences delta ~ 55 degree and sigma ~ 100 degree. With phi_3 free, the fit gives phi_3 ~ 100 degree, and A_{pi pi}, S_{pi pi} agree with BaBar experiment. For phi_3 fixed at 60 degree, the fit gives S_{pi pi} ~ -0.9, which agrees with Belle experiment. With our fitted delta, sigma, many direct CP asymmetries flip sign, and B0 --> pi0 pi0, K- K+ rates ~ 10^{-6}.

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