Gauge-Independent Bound-State Corrections to the Toponium Decay Width
High Energy Physics - Phenomenology
2009-10-28 v1
Abstract
Off-shell and relativistic bound-state corrections for the decay are calculated to making full use of the Bethe-Salpeter formalism for weakly bound systems. Thus we are able to take into account all terms to that order in a systematic and straightforward manner. One of the previously not considered contributions cancels precisely gauge dependent terms which appeared in an earlier off-shell calculation. Important cancellations also determine the gauge-independent part.
Cite
@article{arxiv.hep-ph/9408221,
title = {Gauge-Independent Bound-State Corrections to the Toponium Decay Width},
author = {W. Moedritsch and W. Kummer},
journal= {arXiv preprint arXiv:hep-ph/9408221},
year = {2009}
}
Comments
4 pages, TUW-94-16