For me the constant reminder is how we see http://wc0.worldcrossing.com/WebX?14@84.E3fWccciAdj.21@.1ddf905d/0 and given the first expalnation really helped. Two posts follow in above link that are really good to look at.
Now if you wanted to understand the standard model better, how could we have extended our view? Phase transitions from the early universe?
So we learn to
map this?
[URL="https://www.physicsforums.com/showpost.php?p=201464&postcount=2]The quantum numbers of fundamental particles are:
1. Spin, which is intrinsic angular momentum.
2. Electric charge, which determines how particles couple to EM fields.
3. Color, which determines how particles couple to gluon fields.
4. Flavor (including isospin up/down, strangeness, charm, bottomness and topness), which determines how particles couple to massive vector boson fields.
5. Lepton number (and also electron number, muon number, and tauon number)--which are conserved for some reason unbeknownst to us at this time.
6. Baryon number--Also conserved for some unknown reason.
7. Parity--Which describes how a particle transforms under spatial reflection.
8. C-Parity--Which describes how a particle transforms under charge conjugation.
Another one that could be added is "T-Parity" (if I may coin a term), which describes how particles transform under time reversal. However, this is usually not listed in the Particle Data Group because the product PCT (Parity, Charge Conjugation, and Time Reversal, respectively) is conserved under any circumstance, so specifying P and C automatically determines T.[/URL]
__________________
Self adjoint said:
Parity for spinning particles depends on their handedness, which should be described in the tables. C-parity is just based on electric charges; +1 for positive charges and -1 for negative charges and 0 for neutral particles.
https://www.physicsforums.com/showpost.php?p=201986&postcount=4