منابع مشابه
Final State Interactions in Kaon Decays
We quantify the important effect of strong final state interactions in the weak K → 2π amplitudes, using the measured π-π phase shifts with J = 0 and I = 0, 2. The main results of this analysis, with their implications for ε/ε and the ∆I = 1/2 rule, have been already presented in a previous paper [1]. Here we provide a detailed formal derivation of those results and further discuss the Standard...
متن کاملFinal State Interactions in Kaon Decays Revisited
We examine effects of final state interactions (FSI) in kaon decays using a new scheme without the Omnés function, and show that while ∆I = 1/2 rule is impossible to be explained in terms of FSI alone, ′/ ∼ 16.5 × 10−4 is obtained through FSI, if the calculation is concerned only with the CP-violating parts. The ππ contribution to the mL −mS mass difference is shown to be about 14%, if the size...
متن کاملFinal-State Interactions in Heavy Quark Decays
We study the role played by the final-state interactions (fsi) in heavy quark decays using Pomeron and Regge exchanges to describe high energy scattering. At center of mass energy √ s ∼ 5GeV , Pomeron dominance does not apply. We study the behavior of the decay amplitudes as √ s is varied close to the B mass. We also investigate the behavior of the decay amplitude as √ s → ∞. Our conclusion is ...
متن کاملCharm Nonleptonic Decays and Final State Interactions
A global previous analysis of two-body nonleptonic decays of D mesons has been extended to the decays involving light scalar mesons. The allowance for final state interaction also in nonresonant channels provides a fit of much improved quality and with less symmetry breaking in the axial charges. We give predictions for about 50 decay branching ratios yet to be measured. We also discuss long di...
متن کاملFinal State Interactions and New Physics in B → πK Decays
Within the Standard Model, and if one assumes that soft rescattering effects are negligible, the CP asymmetry Adir CP(B → πK) is predicted to be very small and the ratio R = BR(Bd → πK)/BR(B → πK) provides a bound on the angle γ of the unitarity triangle, sin γ ≤ R. We estimate the corrections from soft rescattering effects using an approach based on Regge phenomenology, and find effects of ord...
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ژورنال
عنوان ژورنال: Nuclear Physics B
سال: 2001
ISSN: 0550-3213
DOI: 10.1016/s0550-3213(00)00601-5