Top quark as a resonance
High Energy Physics - Phenomenology
2012-09-24 v3
Abstract
We suggest the description of the dressed fermion propagator with parity non-conservation in the form with separated positive and negative energy poles. We found general form of the -matrix off-shell projectors and corresponding resonance factors. The parity violation leads to deviation of resonance factors from the naive Breit--Wigner form and to appearance of non-trivial spin corrections. However, for top quark with SM vertex the resonance factor returns to the standard one due to .
Cite
@article{arxiv.1111.1284,
title = {Top quark as a resonance},
author = {A. E. Kaloshin and V. P. Lomov},
journal= {arXiv preprint arXiv:1111.1284},
year = {2012}
}
Comments
8 pages, revtex4, added one section, typos corrected, sync with journal version