Supersymmetric Minimal 𝑈⁢(1)𝑋 Model at the TeV Scale with Right-handed Majorana Neutrino Dark Matter

Authors

Nobuchika Okada
Desmond Villalba, University of Mary WashingtonFollow

Document Type

Article

Digital Object Identifier (DOI)

10.1103/PhysRevD.108.095021

Journal Title

Physical Review D

Publication Date

2023

Abstract

We propose a supersymmetric extension of the minimal 𝑈⁢(1)𝑋 model, along with a new 𝑍2 parity. One of the salient features of this model relates to how both the 𝑈⁢(1)𝑋 gauge symmetry and R parity are broken radiatively at the TeV scale by the vacuum expectation value of a 𝑍2-even right-handed sneutrino. By assigning one right-handed neutrino 𝑍2-odd parity, it can remain a viable dark matter (DM) candidate, despite R parity being broken. Furthermore, the DM relic abundance receives an enhanced annihilation cross section due to the 𝑈⁢(1)𝑋 gauge boson (𝑍′) resonance and is in agreement with the current observations. We have also found a complementarity that exists between the observed DM relic abundance and search results for the 𝑍′ boson resonance at the Large Hadron Collider, which further constrains the parameter space of our 𝑈⁢(1)𝑋 model. Finally, we consider a 𝑆⁢𝑈⁡(5) ×𝑈⁡(1)𝑥 grand unified theory extension and investigate the complementarities mentioned previously.

Comments

This article is freely available on the APS Journals' website at: https://journals.aps.org/prd/.

Publisher Statement

Physical Review D is a trusted journal for significant developments in elementary particle physics, field theory, gravitation, cosmology, astrophysics, and physics and cosmology-related astronomy.

Recommended Citation

N. Okada and D. Villalba, Supersymmetric minimal U ( 1 ) X model at the TeV scale with right-handed Majorana neutrino dark matter, Phys. Rev. D 108, 095021 (2023).