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Constraining heavy colored resonances from top-antitop quark events

AuthorsRodrigo, Germán ; Ferrario, Paola
Issue Date15-Sep-2009
PublisherAmerican Physical Society
CitationPhysical Review - Section D - Particles and Fields 80 (5):051701 (2009)
AbstractRecent measurements of the top quark charge asymmetry at Tevatron disfavor the existence of flavor universal axigluons and colorons at 2 sigma. In this letter, we explore the possibility of reconciling 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.
Publisher version (URL)http://dx.doi.org/10.1103/PhysRevD.80.051701
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