504
Index
W-boson (continued)
production cross section in p¯ p collider, 393–394
scattering of longitudinally polarized,
424–425
Weak interaction basis, 409
Weak isospin, see Isospin, weak
Weyl equation, 292
Wilson approach to renormalization, 173
Wilson loop, 187
W-propagator
massive, 274, 377
massless, 52
ξ (gauge-fixing parameter), 52, 60–61,
273–274, 377
Yang-Mills
fields
self-interactions of, 48, 54–60, 83
in SU(2), 42–45
in SU(3), 49–51
transformation of, 43–45, 50
Lagrangian
in SU(2), 49
in SU(3), 51
and local SU(2), 39–42
mass term violating gauge invariance,
52
quantum, massless, 52
y (inelasticity) distributions, in deep inelastic neutrino scattering, 312–
313
Yukawa coupling
and fermion mass generation, 403–
407
Z
0 boson, 277, 381, 385
decay width, 388–389, 397
and number of light neutrinos, 397
discovery, 395–397
mass, 381, 388, 395, 410
radiatively corrected, 397
tree-level, 388
production cross section in p¯ p collider, 393–394