We determine the b-quark shape function parameters, Lambda^SF and lambda_1^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 Roman.
@article{arxiv.hep-ex/0407052,
title = {Extraction of the b-quark shape function parameters using the Belle B->X_s gamma photon energy spectrum},
author = {A. Limosani and T. Nozaki},
journal= {arXiv preprint arXiv:hep-ex/0407052},
year = {2007}
}
Comments
of the Belle Collaboration for the Heavy Flavor Averaging Group