neutrinonlumneiden
Neutrinonlumcheiden (neutrinonlumneiden) is a hypothetical class of neutral, light fermions proposed in speculative extensions to the neutrino sector. In these theoretical frameworks, neutrinonlumneiden interact only feebly with Standard Model particles through a new portal that links neutrinos to a luminal or photonic sector. The term blends the notion of neutrinos with a light-like interaction channel, signaling a distinctive coupling beyond conventional neutrino physics.
Proposed properties of neutrinonlumcheiden vary by model, but common features include electrical neutrality and very weak
Cosmological and astrophysical implications are a central motivation for these proposals. If present in the early
Experimental status remains speculative; no confirmed detections exist. Searches focus on precision neutrino experiments, rare decays,