quark_3 - PHY2061 R. D. Field Leptons &...

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Unformatted text preview: PHY2061 R. D. Field Leptons & Anti-Leptons (J = ½ fermions, B = 0, Ch = 0, Bo = 0, To = 0) Generation Mass MeV Qem Le Lµ Lµ QU1 Qweak 1st ~0 -1/2 ~0 -1/2 +1/2 2nd 106 -1/2 -1/2 3rd ~0 0 0 0 0 1 1 -1/2 2nd 0 0 1 1 0 0 +1/2 0.5 1 1 0 0 0 0 -1/2 1st 0 -1 0 -1 0 -1 -1/2 +1/2 -1/2 -1/2 Lepton νe eνµ µντ τ- Qem = Qweak + QU1 rd 3 1777 Qem measured in units of the electron charge e Generation Mass MeV Qem Le Lµ Lµ QU1 Qweak 1st 0.5 ~0 0 0 0 0 +1/2 1st -1 -1 +1/2 ve +1 0 +1/2 -1/2 µ+ 2nd 106 ~0 -1 -1 0 0 +1/2 2nd 0 0 +1/2 vµ +1 0 +1/2 -1/2 τ+ 3rd 1777 0 0 -1 -1 +1/2 ~0 0 0 +1/2 3rd +1 0 +1/2 -1/2 AntiLepton e+ vτ SU(2) Weak Lepton Doublets: ȹ ν e ȹ ȹ ν ȹ ȹ ν ȹ L1 = ȹ − ȹ L 2 = ȹ µ ȹ L 3 = ȹ τ ȹ ȹ e ȹ ȹ µ − ȹ ȹ τ − ȹ ȹ Ⱥ ȹ Ⱥ ȹ Ⱥ SU(2) Weak Anti-Lepton Doublets: ȹ µ + ȹ ȹ τ + ȹ ȹ e + ȹ L1 = ȹ ȹ L 2 = ȹ ȹ L3 = ȹ ȹ ȹ ν ȹ ȹ ν ȹ ȹ ν ȹ ȹ τ Ⱥ ȹ e Ⱥ ȹ µ Ⱥ Department of Physics quark_3.doc University of Florida ...
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