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

Nov, 2009
14 pages
Published in:
  • Phys.Rev.D 81 (2010) 034012
e-Print:
Report number:
  • IPMU09-0130,
  • UCI-TR-2009-18

Citations per year

200920132017202120240204060
Abstract: (arXiv)
We consider the recent measurement of the top quark forward-backward asymmetry at the Fermilab Tevatron, which shows a discrepancy of slightly more than 2σ\sigma compared to the SM prediction. We find that tt-channel exchange of a color sextet or triplet scalar particle can explain the measurement, while leaving the cross section for ttˉt \bar{t} production within measured uncertainties. Such particles have good discovery prospects by study of the kinematic structure of ttˉt \bar{t}+jets at the LHC.
Note:
  • 14 pages, 10 figures, 1 table
  • 11.30.Er
  • 14.65.Ha
  • 12.10.Dm
  • angular distribution: asymmetry
  • scalar particle: triplet
  • color: sextet
  • top: pair production
  • Batavia TEVATRON Coll
  • proposed experiment: CERN LHC Coll
  • kinematics