Charge asymmetry: a theory appraisal
High Energy Physics - Phenomenology
2022-03-02 v1 High Energy Physics - Experiment
Abstract
The most recent measurements at Tevatron of the charge asymmetry in top-antitop quark pair production reduce the discrepancy with the Standard Model from 2sigma to 1.7sigma, and open a little window, at 95% C.L., for negative contributions to the charge asymmetry beyond the SM. We update our analysis for colour octet gauge bosons or axigluons in flavour universal and flavour non universal scenarios. We review other possible models and make an educated guess on their parameter space allowed by the new measurements. Finally, we comment on the prospects to measure the charge asymmetry at the LHC.
Cite
@article{arxiv.1007.4328,
title = {Charge asymmetry: a theory appraisal},
author = {German Rodrigo and Paola Ferrario},
journal= {arXiv preprint arXiv:1007.4328},
year = {2022}
}
Comments
Presented at 3rd International Workshop on Top Quark Physics (TOP 2010), Bruges, Belgium, 31 May - 4 Jun 2010. 8 pages