fermioners
Fermioners are a hypothetical class of elementary particles proposed within several beyond-the-Standard-Model frameworks. They are intended to be fermions, possessing half-integer spin and obeying the Pauli exclusion principle, but they carry an additional conserved quantum number—often called the fermioner charge or F-number—that distinguishes them from ordinary fermions.
Models invoking fermioners envision either elementary spin-1/2 particles or higher-spin states. They typically interact weakly with
Possible roles attributed to fermioners include candidates for dark matter if stabilized by the F-number, contributions
Experimental evidence for fermioners has not been observed. Constraints from collider experiments, precision measurements, and cosmology
See also: fermion, standard model, beyond the standard model, dark matter, hidden sector.