PoS - Proceedings of Science
Volume 291 - 9th International Workshop on the CKM Unitarity Triangle (CKM2016) - WG3 Parallel
Addressing $R_K$ and neutrino mixing in a class of $U(1)_X$ models
D. Bhatia*, S. Chakraborty and A. Dighe
Full text: pdf
Pre-published on: June 05, 2017
Published on: June 13, 2017
Abstract
We present a class of minimal U(1)_X models as a plausible solution to the R_K anomaly that can also help reproduce the neutrino mixing pattern. The symmetries and the corresponding X-charges of the fields are determined in a bottom-up approach demanding both theoretical and experimental consistencies. The breaking of U(1)_X symmetry results in a massive Z', whose couplings with leptons and quarks are necessarily non-universal to address the R_K anomaly. In the process, an additional Higgs doublet is introduced to generate quark mixings. The mixings in the neutrino sector are generated through Type-I seesaw mechanism by the addition of three right handed neutrinos and a scalar singlet. The Z' can be probed with a few hundred fb^-1 of integrated luminosity at the 13 TeV LHC in the di-muon channel.
DOI: https://doi.org/10.22323/1.291.0064
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