hypercharge
/ˈhʌɪpətʃɑːdʒ/Particle Physics
noun
A quantum number which is conserved in strong interactions and that is the same for all the particles of a multiplet, being equal to twice their average charge quantum number; symbol Y.
- The hypercharge Y of a particle is related to its strangeness S and baryon number B by Y = S + B, and is related to its charge Q and the third component, I 3, of isospin by Y = 2(Q − I 3)..
Origin
1950s. From hyper- + charge, after hyperonic.