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Using $b \to sγ$ to Probe Top Quark Couplings

J. L. Hewett·T. G. Rizzo
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Abstract

Possible anomalous couplings of the top-quark to on-shell photons and gluons are constrained by the recent results of the CLEO Collaboration on both inclusive and exclusive radiative $B$ decays. We find that the process \bsg\ can lead to reasonable bounds on both the anomalous electric and magnetic dipole moments of the top-quark, while essentially no limits are obtained on the corresponding chromoelectric and chromomagnetic moments, which enter the expression for the decay rate only through operator mixing.

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J. L. Hewett, T. G. Rizzo. 1993-05-07. Using $b \to sγ$ to Probe Top Quark Couplings. https://doi.org/10.1103/physrevd.49.319

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