Light Axigluon Contributions to b-bbar and c-cbar Asymmetry and Constraints on Flavor Changing Axigluon Currents

Abstract

The light axigluon model of Tavares and Schmaltz is a viable candidate to explain the Tevatron t-tbar forward-backward asymmetry. In this paper we present the forward-backward asymmetries for b-bbar and c-cbar systems predicted by the light axigluon. Furthermore, we modify this model to include flavor changing couplings of axigluons with the SM quarks. We constrain these couplings from the available neutral meson mixing data, and investigate their effects on the rare decay B^0_s -> mu^+ mu^-, CP violating D -> h^+ h^- and isospin violating B -> K^(*) mu^+ mu^- decays. We show that a light axigluon can contribute to the observed CP violation in D -> h^+ h^- decays.

23 pages, 13 figures

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Cited by in corpus (6)

• Bottom-Quark Forward-Backward Asymmetry in the Standard Model and Beyond
• Beauty-quark and charm-quark pair production asymmetries at LHCb
• Bottom-Quark Forward-Backward and Charge Asymmetries at Hadron Colliders
• Measurement of the Forward-Backward Asymmetry in the Production of $B^{\pm }$ Mesons in $p\bar{p}$ Collisions at $\sqrt{s}$ = 1.96 TeV
• Asymmetric heavy-quark hadroproduction at LHCb: Predictions and applications
• First measurement of the forward-backward asymmetry in bottom-quark pair production at high mass