Exploring Sterile Neutrinos as a Candidate for Warm Dark Matter: A Unified Fluid Field Theory Approach

This paper extends the Unified Fluid Field Theory (UFFT) into cosmological modeling by identifying sterile neutrinos as viable warm dark matter (WDM) candidates. It predicts a ladder of neutrino states ranging from 0.3 to 1.0 keV, each with distinct mixing angles and decay fluxes derived from UFFT field dynamics. The model demonstrates how these neutrinos suppress small-scale structure formation and contribute to the universe’s dark matter composition. Simulated X-ray decay signatures are benchmarked against current and future observatory thresholds, offering a falsifiable pathway for detection. This paper is a supplement to the original UFFT work published on OSF: https://doi.org/10.17605/OSF.IO/PE6BM and SFT work on OSF: https://doi.org/10.17605/OSF.IO/X3GPC