Electric dipole moments from the perspective of a scalar triplet and singlet extension of the MSSM: A study of neutrons, electrons, mercury, and b and c quarks

TL;DR

This paper investigates electric dipole moments within an extended supersymmetric model, highlighting how new CP-violating sources influence EDM predictions for neutrons, electrons, mercury, and quarks, with implications for future experiments.

Contribution

It introduces a detailed analysis of EDMs in the TNMSSM, emphasizing the impact of specific CP-violating sources and providing predictions close to experimental sensitivities.

Findings

CPV sources significantly affect EDMs

Predicted quark EDMs are within future detection range

Current neutron EDM bounds constrain CPV parameters

Abstract

In the framework of the minimal supersymmetric model extension with new scalar triplets and singlet (TNMSSM), we analyze the electric dipole moment (EDM) of neutron ($d_n$), electron EDM($d_e$), the mercury EDM($d_{Hg}$), $b$ quark ($d_b$) and $c$ quark ($d_c$) by considering the contributions from the one-loop diagrams, some two-loop diagrams and the Weinberg operators. The effects of TNMSSM specific CPV sources $\chi_d,\;\chi_t$ on $d_n$, $d_e$, $d_{Hg}$, $d_b$, $d_c$ are specialized, it is found that they have significant contributions to these EDMs, and the current upper bounds on $d_n$ impose strict constraints on $\chi_d,\;\chi_t$. The theoretical predictions on $d_b$, $d_c$ can reach about $10^{-22}$ e$\cdot$cm and $10^{-23}$ e$\cdot$cm respectively by taking the upper bounds on $d_n$, $d_e$, $d_{Hg}$ into account, which have great potential to be observed in future.