Top pair Asymmetries at Hadron colliders with general $Z^{\prime }$ couplings

Abstract

Recently it has been shown that measurement of charge asymmetry of top pair production at LHC excludes any flavor violating $Z^{\prime }$ vector gauge boson that could explain Tevatron forward-backward asymmetry (FBA). We consider the general form of a $Z^{\prime }$ gauge boson including left-handed, right-handed vector and tensor couplings to examine FBA and charge asymmetry. To evaluate top pair asymmetries at Tevatron and LHC, we consider $B_q^0$ mixing constraints on flavor changing $Z^{\prime }$ couplings and show that this model still explain forward-backward asymmetry at Tevatron and charge asymmetry can not exclude it in part of parameters space.

18 pages, 7 figures

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Cited by in corpus (1)

• Top Quark Asymmetries and Unparticle Physics