Jan 27, 2020 #1 B4cklfip Messages 18 Reaction score 0 How does the isospin operator I_3 act on a state |ud>, where u ist an up- and d a Down quark?
Jan 27, 2020 #2 Vanadium 50 Staff Emeritus Science Advisor Education Advisor Gold Member Dearly Missed Messages 35,014 Reaction score 21,722 Are you in an eigenstate of L_3?
Jan 27, 2020 #3 vanhees71 Science Advisor Education Advisor Insights Author Messages 24,488 Reaction score 15,060 You mean eigenstate of ##I_3##!
Jan 27, 2020 #4 Vanadium 50 Staff Emeritus Science Advisor Education Advisor Gold Member Dearly Missed Messages 35,014 Reaction score 21,722 Yes I do.