Constraining heavy colored resonances from top-antitop quark events
arXiv:0906.5541 · doi:10.1103/PhysRevD.80.051701
Abstract
Recent measurements of the top quark charge asymmetry at Tevatron disfavor the existence of flavor universal axigluons and colorons at 2 sigmas. In this letter we explore the possibility to reconcile the data with these models and use the charge asymmetry and the invariant mass distribution of top-antitop quark pair events to constrain the mass and couplings of massive color-octet gauge bosons decaying to top quarks.
4 pages, 4 figures. References added, final version to appear in Phys.Rev.D
References in corpus (5)
- First measurement of the forward-backward charge asymmetry in top quark pair production
- Top Quarks, Axigluons and Charge Asymmetries at Hadron Colliders
- Threshold Resummation for the Top Quark Charge Asymmetry
- Search for the Production of Narrow tb Resonances in 1.9 fb-1 of ppbar Collisions at sqrt(s) = 1.96 TeV
- Extra Gauge Invariance from an Extra Dimension