R-parity violating U(1)'-extended supersymmetric standard model

TL;DR

This paper explores how a TeV scale U(1)' gauge symmetry can replace R-parity in supersymmetric models, offering alternative solutions for proton stability and dark matter, with unique phenomenological implications.

Contribution

It demonstrates that a U(1)' gauge symmetry with specific discrete residual symmetries can serve as an alternative to R-parity in supersymmetric models.

Findings

U(1)' can replace R-parity in supersymmetry

Residual discrete symmetries protect proton and dark matter

Distinct phenomenology arises from the U(1)' extension

Abstract

Supersymmetry is one of the best motivated new physics scenarios. To build a realistic supersymmetric standard model, however, a companion symmetry is necessary to address various issues. While R-parity is a popular candidate that can address the proton and dark matter issues simultaneously, it is not the only option for such a property. We review how a TeV scale U(1)' gauge symmetry can replace the R-parity. Discrete symmetries of the U(1)' can make the model still viable and attractive with distinguishable phenomenology. For instance, with a residual discrete symmetry of the U(1)', Z6 = B3 x U2, the proton can be protected by the baryon triality (B3) and a hidden sector dark matter candidate can be protected by the U-parity (U2).