Latest constraint on non-standard top-gluon couplings at hadron colliders and its future prospect
High Energy Physics - Phenomenology
2013-07-19 v2 High Energy Physics - Experiment
Abstract
Constraints on the non-standard top-gluon couplings composed of the chromomagnetic- and chromoelectric-dipole moments of the top quark are updated by combining the latest data of top-pair productions from the Tevatron, 7-TeV LHC, and 8-TeV LHC. We find that adding the recent 8-TeV data to the analysis is effective to get a stronger constraint on the chromoelectric-dipole moment than the one from the Tevatron and 7-TeV LHC alone. We also discuss how those constraints on the non-standard couplings could be further improved when 14-TeV LHC results become available in the near future.
Keywords
Cite
@article{arxiv.1306.5387,
title = {Latest constraint on non-standard top-gluon couplings at hadron colliders and its future prospect},
author = {Zenro Hioki and Kazumasa Ohkuma},
journal= {arXiv preprint arXiv:1306.5387},
year = {2013}
}
Comments
Some discussion on SM-loop effects and two related references added. Final version appeared in Phys. Rev. D