Oscillating Asymmetric Sneutrino Dark Matter from the Maximally $U(1{)}_L$ Supersymmetric Inverse Seesaw

Abstract

The inverse seesaw mechanism provides an attractive approach to generate small neutrino mass, which origins from a tiny $U(1{)}_L$ breaking. In this paper, we work in the supersymmetric version of this mechanism, where the singlet-like sneutrino could be an asymmetric dark matter (ADM) candidate in the maximally $U(1{)}_L$ symmetric limit. However, even a tiny $\delta m$, the mass splitting between sneutrino and anti-sneutrino as a result of the tiny $U(1{)}_L$ breaking effect, could lead to fast oscillation between sneutrino and anti-sneutrino and thus spoils the ADM scenario. We study the evolution of this oscillation and find that a weak scale sneutrino, which tolerates a relatively larger $\delta m\sim 10^{-5}$ eV, is strongly favored. We also investigate possible natural ways to realize that small $\delta m$ in the model.

PLB version

References in corpus (7)

• Asymmetric Dark Matter
• Unified origin of baryons and dark matter
• Minimal supergravity sneutrino dark matter and inverse seesaw neutrino masses
• Cosmic Coincidence and Asymmetric Dark Matter in a Stueckelberg Extension
• Leptogenesis origin of Dirac gaugino dark matter
• Minimal Asymmetric Dark Matter
• Selfish Dark Matter

Cited by in corpus (9)

• Suppressing the Scattering of WIMP DM with Nucleons in Supersymmetric Theories
• Asymmetric Dark Matter Bound State
• Sneutrino DM in the NMSSM with inverse seesaw mechanism
• Resonant slepton production and right sneutrino dark matter in left-right supersymmetry
• A supersymmetric electroweak scale seesaw model
• Secretly Asymmetric Dark Matter
• Impact of leptonic unitarity and dark matter direct detection experiments on the NMSSM with inverse seesaw mechanism
• Sneutrino Dark Matter via pseudoscalar X-funnel meets Inverse Seesaw
• Oscillating Composite Asymmetric Dark Matter