Recent content by BB1974

Since charge is always conserved, isn't the excess of negative leptons an inevitible result of the excess of protons (the stable baryon) vs. anti-protons (the stable anti-baryon). All matter baryons will ultimately break down into protons, electrons, and electron anti-neutrinos. So we end up...

Is there any GUT multiplet containing the +1, 0, +2/3 and -1/3 particles? So now that you've tantalised us with the "deeper question", is there a "deeper answer"?

It's the weak interactions (flavordynamics) not the strong (chromodynamics) that violate CP, thereby allowing us to distinguish anti-matter from matter. Griffiths chapter on CP violation (4.8) gives a convention-free definition of positive charge. It is the charge carried by the lepton...

Thanks everyone. I attempted to explain that the eta' lasts about 40 times as long as the omega with a combination of OZI and phase-space arguments. As far as strong decays go: eta' = (dd-bar + uu-bar + ss-bar)/sqrt(3) goes to eta = (dd-bar + uu-bar - 2 ss-bar)/sqrt(6) plus 2 pions. I...

Why does the eta prime meson have such a narrow decay width (ie long lifetime) compared to the rho and omega mesons? Is there some conservation rule that supresses its decays?