Exotic baryon

In particle physics, exotic baryons are a type of hadron (bound states of quarks and gluons) with half-integer spin, but with a quark content different from the three quarks (qqq) present in conventional baryons.

[3] Several types of exotic baryons that require physics beyond the Standard Model have been conjectured in order to explain specific experimental anomalies.

One example is supersymmetric R-baryons,[4] which are bound states of 3 quarks and a gluino.

This particle is expected to be long lived or stable and has been invoked to explain ultra-high-energy cosmic rays.

[5][6] Stable exotic baryons are also candidates for strongly interacting dark matter.