Hyperon

In particle physics, a hyperon is any fermion) with non-zero strangeness, but with zero charm and zero bottomness.

Properties and behavior of hyperons

  All hyperons are quark model.

The Ω⁻ has strangeness −3, so it takes multiple flavor-changing weak decays for it to decay into a proton or neutron. One such three-step decay was observed in a cosmic ray experiment, but it was not until other Ω⁻ particles were produced and observed using particle accelerators that Murray Gell-Mann's SU(3) model (sometimes called the Eightfold Way) was considered confirmed.

Hyperon research

The first research into hyperons happened in the 1950s, and spurred physicists on to the creation of an organized classification of particles. Today, research in this area is carried out on data taken at many facilities around the world, including CERN, Fermilab, SLAC, JLAB, Brookhaven National Laboratory, KEK, and others. Physics topics include searches for CP violation, measurements of spin, studies of excited states (commonly referred to as spectroscopy), and hunts for exotic states such as pentaquarks.

See also

• Hypernucleus
• List of particles