Low-energy theorems for strongly interactingW’s andZ’s
- 1 September 1987
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review D
- Vol. 36 (5), 1490-1499
- https://doi.org/10.1103/physrevd.36.1490
Abstract
Low-energy theorems are proved for the scattering of longitudinally polarized W and Z bosons that hold at a scale intermediate between and the characteristic mass scale of the symmetry-breaking sector. The theorems are proved without assuming a custodial SU(2) symmetry. Three methods are used: a perturbative power-counting analysis in the unitary gauge, a current-algebra derivation in renormalizable gauges, and a nonlinear chiral Lagrangian that is relevant in unitary or renormalizable gauges.
Keywords
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