Synergy between Hubble tension motivated self-interacting neutrinos and KeV-sterile neutrino dark matter

The discrepancy between the value of Hubble constant measured by cosmic microwave background observations and local low-redshift based has proposed many solutions that require existence physics beyond Standard Model (SM). One interesting is on considering strong self-interaction SM neutrinos through an additional scalar/vector mediator. Interestingly, also play important role in obtaining KeV-sterile neutrino as a viable dark matter candidate famous Dodelson-Widrow mechanism. In this work, we have tried to find synergy parameter space active-sterile mixing vs mass sterile allowed tension solution requirement getting DM candidate. get large amount consistent with both requirements free from x-ray constraints. Finally, embedded scenario supersymmetric model particle physics. framework, shown mass, required angle can be naturally obtained supersymmetry breaking scale around $\mathcal{O}(10)\text{ }\text{ }\mathrm{TeV}$. Thus, it would give testing ground for well signatures warm matter.