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arXiv · 1507.01797

Explaining muon magnetic moment and AMS-02 positron excess in a gauged horizontal symmetric model

Gaurav Tomar
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Abstract

We extended the standard model with a fourth generation of fermions to explain the discrepancy in the muon magnetic moment and to describe the positron excess observed by AMS-02 experiment. We introduce a gauged $SU(2)_{HV}$ horizontal symmetry between the muon and the 4th generation lepton families and identified the 4th generation right-handed neutrino as the dark matter with mass $\sim 700$ GeV. The dark matter annihilates through $SU(2)_{HV}$ gauge boson into final states $(\mu^+ \mu^-)$ and $(\nu^c_\mu ~\nu_\mu)$. The $SU(2)_{HV}$ gauge boson with mass $\sim 1.4$ TeV gives the required contribution to the muon $(g-2)$ and satisfy the experimental constraint from BNL measurement.

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Gaurav Tomar. 2015-07-07. Explaining muon magnetic moment and AMS-02 positron excess in a gauged horizontal symmetric model. https://arxiv.org/abs/1507.01797

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