Exploring anomalous top interactions via the final lepton in ttbar productions/decays at hadron colliders
Abstract
We study momentum distributions of the final-state charged lepton in ppbar/pp --> ttbar --> l^+ X (l=e or mu) at hadron colliders, i.e., Tevatron and Large Hadron Collider (LHC) in order to explore possible new-physics effects in the top-quark sector. Assuming general model-independent ttbar g + ttbar gg and tbW interactions beyond the standard model, we first derive analytical formulas for the corresponding parton-parton processes. We then compute the lepton angular, energy and transverse-momentum distributions in ppbar/pp collisions to clarify how they are affected by those anomalous couplings.
Keywords
Cite
@article{arxiv.1104.1221,
title = {Exploring anomalous top interactions via the final lepton in ttbar productions/decays at hadron colliders},
author = {Zenro HIOKI and Kazumasa OHKUMA},
journal= {arXiv preprint arXiv:1104.1221},
year = {2015}
}
Comments
Journal information added. Title slightly changed in the published version (top interaction --> top-quark interaction). One typo in eqs.(15)-(19) corrected (dE_l c_l --> dE_l dc_l)