Report on: Top Quark Forward-Backward Asymmetry in the Large Invariant Mass Region

by Biplob Bhattacharjee

Friday 28 Jan 2011, 11:30 → 12:30 Asia/Kolkata

A-304 (Colaba Campus)

Authors: Kingman Cheung, Tzu-Chiang Yuan Abstract: The forward-backward asymmetry (FBA) in top-pair production that was observed in 2008 gets a boost in a recent CDF publication. Not only has the FBA further been confirmed, but also distributional preferences are shown. Strikingly, the FBA is the most sizable in the large $M_{t\bar t}$ invariant mass region and in the large rapidity difference $|\Delta y|$ region. Here we used our previously proposed $t$-channel exchanged $W'$ boson to explain the new observations. We show that a new particle exchanged in the $t$-channel generically gives rise to such observations.

Paper http://arxiv.org/abs/1101.1445v1