Isospin · The Nucleon Doublet
unseel.com · SU(2) symmetry · Proton ⇄ Neutron · Heisenberg 1932
State nucleon
I₃ +1/2
Q +1 e
mode standby
Proton (I₃ = +½)
Neutron (I₃ = −½)
Pion triplet (I = 1)
Unseel.com · Isospin