A universal Lagrangian for massive Yang–Mills theories without residual Higgs bosons

SUSY GUTs without light Higgs bosons

There are two different types of perturbative unification in SUSY GUTs. Perturbative gauge unification is necessary for the extremely successful prediction of sin θw. “Perturbative validity” requires that all couplings (not just the gauge couplings) remain small; this assumption is essential to the proof that any SUSY GUT must have a light Higgs with a mass below 140 GeV. It is pointed out here...

Tools for Charged Higgs Bosons

In order to identify the Higgs sector realized in nature, the predictions for Higgs boson masses, production cross sections and decay widths have to be compared with experimental results. We give a brief overview about computer codes for the evaluation of the properties of charged Higgs bosons, mostly focusing on the case of the Minimal Supersymmetric Standard Model (MSSM). We briefly review th...

– 1 – Searches for Higgs Bosons

Masses of W and Z Bosons without Higgs

A Lagrangian of electroweak interactions without Higgs is used to study the contributions of quarks and leptons to the masses of the W and the Z bosons. It is shown that the SU(2) × U(1) symmetry is broken by both fermion masses and axial-vector components of the intermediate bosons. The masses of the W and the Z bosons are obtained to be m2W = 1 2 g2m2t and m 2 Z = ρm 2 W/cos θW with ρ ≃ 1. Tw...

osp(1,2)-covariant Lagrangian quantization of reducible massive gauge theories

The osp(1, 2)-covariant Lagrangian quantization of irreducible gauge theories [1] is generalized to L-stage reducible theories. The dependence of the generating functional of Green’s functions on the choice of gauge in the massive case is discussed and Ward identities related to osp(1, 2) symmetry are given. Massive first-stage theories with closed gauge algebra are studied in detail. The gener...