Study some two loop contribution to muon anomalous MDM in the N-B-LSSM

TL;DR

This paper investigates two-loop electroweak corrections in the N-B-LSSM model, showing that certain parameters can account for the muon g-2 discrepancy within experimental uncertainties.

Contribution

It provides a detailed analysis of two-loop SUSY contributions to muon g-2 in the N-B-LSSM, highlighting key parameters influencing the anomaly.

Findings

Most parameter sets yield muon g-2 within 2σ of experimental data.

Parameters like tanβ, Te, M_L^2, M_e^2, and M_{BB'} significantly affect the muon g-2.

The model can explain the muon g-2 deviation from the Standard Model.

Abstract

It is well known that the muon magnetic dipole moment (MDM) has close relation with the new physics (NP) in the development of the Standard Model (SM). Combined with the Fermilab National Accelerator Laboratory (FNAL) and the Brookhaven National Laboratory (BNL) E821 result, the departure from the SM prediction is about 5.0 $\sigma$. We study the electroweak corrections from several type two-loop SUSY diagrams and the virtual SUSY particles include chargino, neutralino, scalar lepton and scalar neutrino. Based on the latest experimental constraints, we study the {muon anomalous MDM} under the next to the minimal supersymmetric extension of the SM with local B-L gauge symmetry (N-B-LSSM). The abundant numerical results verify that $\tan{\beta},~T_e,~M^2_L,~M^2_e,~M_{BB'}$ play an important role in {muon anomalous MDM}. $M^2_e,~\tan{\beta}$ and $T_e$ are sensitive parameters to {muon anomalous MDM}. From the data obtained in all the figures of the numerical results, most of the values of $a_{\mu}^{NBL}$ are in 2$\sigma$ interval, which can compensate the departure between the experiment data and the SM prediction.