You searched for: “xi hyperon”
xi hyperon, xi particle
An isotopic spin multiplet of quasi-stable baryons with positive parity, spin 1/2, isotopic spin 1/2 hypercharge -1, and approximate mass 1318 MeV.
This entry is located in the following units: hyper-, hyp- (page 20) xi; Ξ, ξ + (page 1)