Gell-Mann-Nishijima scheme

Gell-Mann-Nishijima scheme

[′gel¦män ‚nē·shē·jē·mə ‚skēm]
(particle physics)
A classification of elementary particles according to hypercharge, total isotopic spin, and its third component (which distinguishes between members of an isospin multiplet).
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.