X-ray line in Radiative Neutrino Model with Global $U(1)$ Symmetry

TL;DR

This paper proposes a three-loop radiative neutrino model with a global $U(1)$ symmetry at the TeV scale, explaining the 3.55 keV X-ray line and addressing dark matter, muon g-2, and neutrino anomalies.

Contribution

It introduces a novel three-loop radiative neutrino model with global $U(1)$ symmetry that accounts for multiple astrophysical and particle physics observations.

Findings

Explains the 3.55 keV X-ray line with dark matter decay.

Addresses muon anomalous magnetic moment discrepancy.

Predicts scattering cross sections consistent with direct detection.

Abstract

We study a three loop induced radiative neutrino model with global $U(1)$ symmetry at TeV scale, in which we consider two component dark matter particles. We discuss the possibility to explain the X-ray line signal at about 3.55 keV recently reported by XMN-Newton X-ray observatory using data of various galaxy clusters and Andromeda galaxy. Subsequently, we also discuss to show that sizable muon anomalous magnetic moment, a discrepancy of the effective number of neutrino species $\Delta N_{\rm eff}\approx$ 0.39, and scattering cross section detected by direct detection searches can be derived.