Top-quark forward-backward asymmetry from a color-octet t -channel resonance

Li Cheng, Alper Hayreter, German Valencia

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2 Citations (Scopus)

Abstract

We consider new physics contributions to the top-quark forward-backward asymmetry from a neutral V80 or charged V8+ color-octet vector exchanged in the t channel. We study the phenomenological constraints on these particles arising from the Tevatron and LHC7 measurements and compare them with those on their color-singlet counterparts Z′ and W′. We find that the color octets fare better than the singlets in that they generate a lower AC, a lower high-invariant mass cross section at LHC7 and a lower same sign top-pair cross section. However, they also generate a lower AFB than their color-singlet counterparts.

Original languageEnglish
Article number095009
Number of pages10
JournalPhysical Review D
Volume89
Issue number9
DOIs
Publication statusPublished - 9 May 2014
Externally publishedYes

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