Fermionic corrections to the interference of the electro- and chromomagnetic dipole operators in (B)over-bar → Xsγ at O(αs2)

We calculate the virtual and bremsstrahlung fermionic corrections due to the interference of the electro- and chromomagnetic dipole operators in the inclusive (B) over bar -> X-s gamma decay at O(alpha(2)(s)) and present analytical results for both the total decay rate and the photon energy spectrum. (C) 2008 Elsevier B.V. All rights reserved.