Constraining heavy colored resonances from top-antitop quark events
High Energy Physics - Phenomenology
2009-10-20 v2
Abstract
Recent measurements of the top quark charge asymmetry at Tevatron disfavor the existence of flavor universal axigluons and colorons at 2 sigmas. In this letter we explore the possibility to reconcile the data with these models and use the charge asymmetry and the invariant mass distribution of top-antitop quark pair events to constrain the mass and couplings of massive color-octet gauge bosons decaying to top quarks.
Cite
@article{arxiv.0906.5541,
title = {Constraining heavy colored resonances from top-antitop quark events},
author = {Paola Ferrario and German Rodrigo},
journal= {arXiv preprint arXiv:0906.5541},
year = {2009}
}
Comments
4 pages, 4 figures. References added, final version to appear in Phys.Rev.D