Charm quark mass dependence of the electromagnetic dipole operator contribution to (B)over-bar →Xsγ at O(αs2)

We extend existing calculations of the electromagnetic dipole operator contribution to the total decay rate and the photon energy spectrum of the decay (B) over bar -> X-s gamma at 0 (alpha(2)(s)) by working out the exact dependence on the charm quark mass. (c) 2007 Elsevier B.V. All rights reserved.