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

by Biplob Bhattacharjee

Friday, January 28, 2011 from 11:30 to 12:30 (Asia/Kolkata)
at Colaba Campus ( A-304 )

Description

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.

Participants

Arka Banerjee; Debasish Banerjee; Raju Bathija; Rajeev Bhalerao; Biplob Bhattacharjee; Sudhansu Biswal; Saumen Datta; Amol Dighe; Rajiv V. Gavai; Diptimoy Ghosh; Monoranjan Guchait; Sourendu Gupta; Vinod Joshi; Sridhar K.; Nikhil Karthik; Padmanath M.; Nilmani Mathur; Shiraz Minwalla; Subroto Pal; Sreerup Raychaudhuri; Sayantan Sarma; Anurag Tripathi

Material:

Paper