Dimuon CP Asymmetry in B Decays and Wjj Excess in Two Higgs Doublet Models

TL;DR

This paper explores how a type III two Higgs doublet model can simultaneously address the dimuon CP asymmetry in B_s decays and the Wjj excess observed by CDF, by enhancing specific flavor-changing interactions.

Contribution

It demonstrates that Higgs-induced flavor-changing neutral currents in a two Higgs doublet model can explain both anomalies with large quark couplings.

Findings

Enhancement of 2^s explains dimuon asymmetry.

Large Higgs couplings to first and second generation quarks.

Potential link between B decay anomalies and Wjj excess.

Abstract

We analyze the puzzle of the dimuon CP asymmetry in B_s decays in two Higgs doublet models. We show that the flavor changing neutral current (FCNC) induced by the Higgs coupling in a type III two Higgs doublet model provides a solution to the dimuon charge asymmetry puzzle by enhancing the absorbtive part of the mixing amplitude \Gamma_{12}^s. We investigate different experimental constraints and show that it is possible to enhance \Gamma_{12}^s in order to explain the dimuon asymmetry observed by D0. This enhancement requires large Higgs couplings to the first and second generations of quarks which may also explain the recent 3.2 \sigma Wjj excess observed by CDF.