Originally Posted by trinitree88

Jerry. Minor nitpick....positrons/electrons are not technically baryonic matter, as they are not baryons. The lightest baryon is the proton. Electrons/positrons are leptons..."light ones" with the muon and tau being the heavier members. Baryons consist of three quarks...leptons have none. Baryons must conserve baryon number in their decays,and have lepton number 0. Leptons conserve lepton number in their decays, have baryon number 0.