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arXiv · 1207.3825

More about excited bottomonium radiative decays

Randy Lewis·R. M. Woloshyn
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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.

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Randy Lewis, R. M. Woloshyn. 2012-09-18. More about excited bottomonium radiative decays. https://doi.org/10.1103/physrevd.86.057501

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