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QUARK OFF-SHELL EFFECTS IN FLAVOUR-CHANGING DECAYS

J. O. Eeg·I. Picek
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Abstract

We discuss some flavour-changing effective Lagrangians, obtained from scales above 1 GeV, which vanish on the quark mass shell. Although the effects of such effective Lagrangians are zero in the limit of vanishing bound-state interactions, we have shown that they have a significant impact on the processes $K\rightarrowγγ$ and $B_s \rightarrowγγ$.

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J. O. Eeg, I. Picek. 1995-01-20. QUARK OFF-SHELL EFFECTS IN FLAVOUR-CHANGING DECAYS. https://arxiv.org/abs/hep-ph/9501352

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