b -> s mu(+)mu(-) anomalies and related phenomenology in U(1)(B3-x mu)L-mu-x(tau)L(tau) flavor gauge models

초록

We propose a generation dependent lepton/baryon gauge symmetry, UX (with x + x = 1 for anomaly cancellation), as a possible solution for the b s(+-) anomalies. By introducing two Higgs doublet fields, we can reproduce the observed CKM matrix, and generate flavor changing Z interactions in the quark sector. Thus one can explain observed anomalies in b s(+-) decay with the lepton non-universal U(1)(X) charge assignments. We show the minimal setup explaining bs(+-) anomalies, neutrino masses and mixings and dark matter candidate, taking into account experimental constraints of flavor physics such as charged lepton flavor violations and the Bs-B<s mixing. Finally we discuss collider physics focusing on Z production at the Large Hadron Collider and relic density of our dark matter candidate.

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