Complete (O{sub 7},O{sub 8}) contribution to B{yields}X{sub s{gamma}} at O({alpha}{sub s}{sup 2})

We calculate the set of O({alpha}{sub s}{sup 2}) corrections to the branching ratio and to the photon energy spectrum of the decay process B{yields}X{sub s{gamma}} originating from the interference of diagrams involving the electromagnetic dipole operator O{sub 7} with diagrams involving the chromom...

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