Moments of the photon spectrum in the inclusive B → X_{s}γ decay
Abstract
The moments of the photon spectrum in the inclusive B → X_{s}γ decay can be calculated to order α_{s} accuracy at present, without knowing the α_{s} corrections to the effective Hamiltonian. We discuss the standard model predictions, and how the moments of the photon spectrum are related to certain matrix elements of the heavy quark effective theory. The sensitivity of these moments to new physics is small, and they provide a modelindependent determination of the b quark pole mass (at order α_{s}), or equivalently, the matrix elements overlineΛ and λ_{1} of the effective theory.
 Publication:

Physics Letters B
 Pub Date:
 February 1995
 DOI:
 10.1016/03702693(95)00762A
 arXiv:
 arXiv:hepph/9506201
 Bibcode:
 1995PhLB..355..318K
 Keywords:

 High Energy Physics  Phenomenology
 EPrint:
 13 pages, revtex