fermionideks

Fermionideks are hypothetical fermionic particles proposed in some beyond-Standard-Model theories. They are spin-1/2 fermions carrying a conserved quantum number called the idek number. In these models, the idek number is independent from electric charge as well as baryon and lepton numbers, allowing varied stability and interactions.

The main theoretical framework adds an extra U(1)_I gauge symmetry. The corresponding gauge boson, the idek boson, mediates interactions between fermionideks and can mix with Standard Model gauge bosons. Fermionidek masses arise from spontaneous breaking of the U(1)_I sector, and they can be Dirac or Majorana.

Fermionideks are usually taken to be neutral with respect to electromagnetism and the strong force, but they can couple to Standard Model particles through the new gauge interaction or kinetic mixing. Models often admit a spectrum of fermionidek states with varying masses and mixings.

Phenomenologically, they are explored as dark matter candidates, particularly if the lightest fermionidek is cosmologically stable. They may yield signals in direct detection, indirect searches for annihilation or decay, and collider experiments that look for missing energy or displaced vertices.

Fermionideks remain speculative with no experimental confirmation. They serve as a theoretical concept for examining how new gauge symmetries could extend the particle spectrum and address questions such as dark matter, neutrino masses, or anomalies in high-energy data.