More about excited bottomonium radiative decays
High Energy Physics - Lattice
2012-09-19 v2 High Energy Physics - Phenomenology
Abstract
Radiative decays of bottomonium are revisited, focusing on contributions from higher-order relativistic effects. The leading relativistic correction to the magnetic spin-flip operator at the photon vertex is found to be particularly important. The combination of O(v^6) effects in the nonrelativistic QCD action and in the transition operator moves previous lattice results for excited Upsilon decays into agreement with experiment.
Cite
@article{arxiv.1207.3825,
title = {More about excited bottomonium radiative decays},
author = {Randy Lewis and R. M. Woloshyn},
journal= {arXiv preprint arXiv:1207.3825},
year = {2012}
}
Comments
4 pages, 3 figures, published version