Explorations of the Top Quark Forward-Backward Asymmetry at the Tevatron

Details Explorations of the Top Quark Forward-Backward Asymmetry at the Tevatron Explorations of the Top Quark Forward-Backward Asymmetry at the Tevatron

2009-11-17

arxiv.org/abs/0911.3237v1

Phys.Rev.D81:034012,2010

Physics

High Energy Physics

High Energy Physics - Phenomenology

14 pages, 10 figures, 1 table

Scientific paper

10.1103/PhysRevD.81.034012

We consider the recent measurement of the top quark forward-backward asymmetry at the Fermilab Tevatron, which shows a discrepancy of slightly more than 2$\sigma$ compared to the SM prediction. We find that $t$-channel exchange of a color sextet or triplet scalar particle can explain the measurement, while leaving the cross section for $t \bar{t}$ production within measured uncertainties. Such particles have good discovery prospects by study of the kinematic structure of $t \bar{t}$+jets at the LHC.

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