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arXiv · hep-ph/9410400

Equivalence Theorem and Probing the Electroweak Symmetry Breaking Sector

Hong-Jian He·Yu-Ping Kuang·C. -P. Yuan
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Abstract

We examine the Lorentz non-invariance ambiguity in longitudinal weak-boson scatterings and the precise conditions for the validity of the Equivalence Theorem (ET). {\it Safe} Lorentz frames for applying the ET are defined, and the intrinsic connection between the longitudinal weak-boson scatterings and probing the symmetry breaking sector is analyzed. A universal precise formulation of the ET is presented for both the Standard Model and the Chiral Lagrangian formulated Electro-Weak Theories. It is shown that in electroweak theories with strongly interacting symmetry breaking sector, the longitudinal weak-boson scattering amplitude {\it under proper conditions} can be replaced by the corresponding Goldstone-boson scattering amplitude in which all the internal weak-boson lines and fermion loops are ignored.

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Hong-Jian He, Yu-Ping Kuang, C. -P. Yuan. 1995-03-03. Equivalence Theorem and Probing the Electroweak Symmetry Breaking Sector. https://doi.org/10.1103/physrevd.51.6463

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