Neutron electric dipole moment in CP violating BLMSSM

TL;DR

This paper investigates the neutron electric dipole moment within a CP violating BLMSSM framework, analyzing one-loop and Weinberg operator contributions, and finds results close to current experimental limits.

Contribution

It provides the first detailed numerical analysis of neutron EDM in the CP violating BLMSSM, considering both one-loop and Weinberg operator effects.

Findings

Neutron EDM can reach $1.05\times 10^{-25}$ e·cm.

Results are close to current experimental upper limits.

Analysis includes contributions from one-loop diagrams and Weinberg operators.

Abstract

Considering the CP violating phases, we analyze the neutron electric dipole moment (EDM) in a CP violating supersymmetric extension of the standard model where baryon and lepton numbers are local gauge symmetries(BLMSSM). The contributions from the one loop diagrams and the Weinberg operators are taken into account. Adopting some assumptions on the relevant parameter space, we give the numerical results analysis. The numerical results for neutron EDM can reach $1.05\times 10^{-25}(e.cm)$, which is about the experimental upper limit.