# A flavor dependent gauge symmetry, Predictive radiative seesaw and LHCb   anomalies

**Authors:** P. Ko, Takaaki Nomura, Hiroshi Okada

arXiv: 1701.05788 · 2017-08-23

## TL;DR

This paper introduces a flavor-dependent gauge symmetry model that predicts neutrino mass patterns, addresses LHCb anomalies, and explores dark matter and collider constraints.

## Contribution

It presents a novel radiative seesaw model with a specific gauge symmetry that explains neutrino masses, dark matter, and LHCb anomalies simultaneously.

## Key findings

- Neutrino mass matrix has an $A_1$ texture with two zeros.
- The model can resolve LHCb anomalies in B-meson decays.
- Predicted $Z'$ boson could be observed at the LHC.

## Abstract

We propose a predictive radiative seesaw model at one-loop level with a flavor dependent gauge symmetry $U(1)_{xB_3-xe-\mu+\tau}$ and Majorana fermion dark matter. For the neutrino mass matrix, we obtain an $A_1$ type texture (with two zeros) that provides us several predictions such as the normal ordering for the neutrino masses. We analyze the constraints from lepton flavor violations, relic density of dark matter, and collider physics for the new $U(1)_{xB_3-xe-\mu+\tau}$ gauge boson. Within the allowed region, the LHCb anomalies in $B\rightarrow K^* \mu^+ \mu^-$ and $B\rightarrow K \ell^+ \ell^-$ with $\ell=e$ or $\mu$ can be resolved, and such $Z'$ could be also observed at the LHC.

## Full text

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## Figures

6 figures with captions in the complete paper: https://tomesphere.com/paper/1701.05788/full.md

## References

32 references — full list in the complete paper: https://tomesphere.com/paper/1701.05788/full.md

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Source: https://tomesphere.com/paper/1701.05788