The axino is a hypothetical elementary particle predicted by some theories of particle physics.

This process has been found to double the number of particles predicted by previous theory.

With the important exception of the Higgs boson, all of the particles predicted by the model have been observed.

Today, the neutralino, a hypothetical particle predicted by superstring theory, is the leading candidate for the stuff of the cosmos.

These include a variety of particles predicted by theories now going the rounds.

Now there is just one more particle predicted by the theory that has not been seen.

They see the Higgs as a missing link, the only particle predicted by the Standard Model that has not been discovered.

In particle physics, the neutralino is a hypothetical particle predicted by supersymmetry.

But muons are 200 times as heavy, the better to interact with the relatively massive particles predicted by supersymmetry.

A bilepton is a hypothetical particle predicted by the minimal 331 model.