Physics 357 : Decuplets
Baryon Multiplets (F&H Section 15.5)
There are two L=0 ground state baryon multiplets. Considering only baryons containing up, down, and strange quarks they are:
A JP = 1/2- octet: (name, quarks, mass (MeV)), in which one quark has spin aligned opposite to the other two quarks.
Each member of the octet has simultaneous flavour-spin symmetry, e.g.
Similarly, if all the quark spins are aligned, we have the
JP = 3/2- decuplet
The Omega- was predicted by the quark model.
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