The Top Quark Production Asymmetries $A_{FB}^t$ and $A_{FB}^{\ell}$
High Energy Physics - Phenomenology
2012-02-15 v1 High Energy Physics - Experiment
Abstract
A large forward-backward asymmetry is seen in both the top quark rapidity distribution and in the rapidity distribution of charged leptons from top quarks produced at the Tevatron. We study the kinematic and dynamic aspects of the relationship of the two observables arising from the spin correlation between the charged lepton and the top quark with different polarization states. We emphasize the value of both measurements, and we conclude that a new physics model which produces more right-handed than left-handed top quarks is favored by the present data.
Keywords
Cite
@article{arxiv.1201.1790,
title = {The Top Quark Production Asymmetries $A_{FB}^t$ and $A_{FB}^{\ell}$},
author = {Edmond L. Berger and Qing-Hong Cao and Chuan-Ren Chen and Jiang-Hao Yu and Hao Zhang},
journal= {arXiv preprint arXiv:1201.1790},
year = {2012}
}
Comments
accepted for publication in Physical Review Letters