The Resummed Photon Spectrum in Radiative Upsilon Decays
High Energy Physics - Phenomenology
2009-11-07 v2 High Energy Physics - Experiment
Abstract
We present a theoretical prediction for the photon spectrum in radiative Upsilon decay including the effects of resumming the endpoint region, E_\gamma -> M_\Upsilon/2. Our approach is based on NRQCD and the soft collinear effective theory. We find that our results give much better agreement with data than the leading order NRQCD prediction.
Cite
@article{arxiv.hep-ph/0211303,
title = {The Resummed Photon Spectrum in Radiative Upsilon Decays},
author = {Sean Fleming and Adam K. Leibovich},
journal= {arXiv preprint arXiv:hep-ph/0211303},
year = {2009}
}
Comments
4 pages, 6 figures