baryon octet
baryon octet
[′bar·ē‚än äk′tet] (particle physics)
The group of one lambda, three sigma, and two xi hyperons and two nucleons, all having spin ½ and positive parity, and forming a symmetrical pattern as suggested by SU3 symmetry.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.