Sneaky light stop
High Energy Physics - Phenomenology
2015-03-09 v1
Abstract
A light supersymmetric top quark partner (stop) with a mass nearly degenerate with that of the Standard Model (SM) top quark can evade direct searches. The precise measurement of SM top properties such as the cross-section has been suggested to give a handle for this `stealth stop' scenario. We present an estimate of the potential impact a light stop may have on top quark mass measurements. The results indicate that certain light stop models may induce a bias of up to a few GeV, and that this effect can hide the shift in, and hence sensitivity from, cross-section measurements. The studies make some simplifying assumptions for the top quark measurement technique, and are based on truth-level samples.
Keywords
Cite
@article{arxiv.1410.7025,
title = {Sneaky light stop},
author = {Till Eifert and Benjamin Nachman},
journal= {arXiv preprint arXiv:1410.7025},
year = {2015}
}