Very Light Scalar Top Quarks at the LHC
High Energy Physics - Phenomenology
2013-12-19 v2 High Energy Physics - Experiment
Abstract
A very light scalar top (stop) superpartner is motivated by naturalness and electroweak baryogenesis. When the mass of the stop is less than the sum of the masses of the top quark and the lightest neutralino superpartner, as well as the of the masses of the lightest chargino and the bottom quark, the dominant decay channels of the stop will be three-body, four-body, or flavour violating. In this work, we investigate the direct and indirect constraints on a light stop, we compute the relative decay branching fractions to these channels, and we study the sensitivity of existing LHC searches to each of them.
Keywords
Cite
@article{arxiv.1212.4856,
title = {Very Light Scalar Top Quarks at the LHC},
author = {Karol Krizka and Abhishek Kumar and David E. Morrissey},
journal= {arXiv preprint arXiv:1212.4856},
year = {2013}
}
Comments
38 pages, 5 figures, 2 tables, added references and comments to match journal version