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Charm quark mass dependence of the electromagnetic dipole operator contribution to anti-B -> X(s) gamma at O(alpha**2(s))

H. M. Asatrian·T. Ewerth·H. Gabrielyan·C. Greub
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Abstract

We extend existing calculations of the electromagnetic dipole operator contribution to the total decay rate and the photon energy spectrum of the decay \bar{B} -> X_sγat O(α_s^2) by working out the exact dependence on the charm quark mass.

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H. M. Asatrian, T. Ewerth, H. Gabrielyan, C. Greub. 2007-06-02. Charm quark mass dependence of the electromagnetic dipole operator contribution to anti-B -> X(s) gamma at O(alpha**2(s)). https://doi.org/10.1016/j.physletb.2007.02.027

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