Registry · Definition
IV.D120
tau-effective
formalized
IV.D120 — W Boson Parameters
Observed W boson: M_W = 80.377 pm 0.012 GeV, charge pm e, spin 1, width 2.085 GeV, lifetime ~3e-25 s, 3 polarizations. Charge from isospin T_pm, spin-1 from gauge connection (1-form).
Book IV
Part 4
Ch. 31