Determination of the b-quark leading shape function parameters in the shape function scheme using the Belle B->X_s gamma photon energy spectrum
arXiv:hep-ex/0506057
Abstract
We determine the b-quark shape function parameters in the shape function scheme, m_b(SF) and μ_Ï^2(SF), using the Belle B->X_s gamma photon energy spectrum. We assume three models for the form of the shape function; exponential, gaussian and hyperbolic.
of the Belle Collaboration for the Heavy Flavor Averaging Group, 7 pages, 4 figures