The Improved Bounce Solution of SU(2)-Higgs Model

Are the Supersymmetric Higgs Particles Pseudo-goldstone Bosons?

A promising solution to the doublet-triplet splitting problem of SUSY GUT's is the Higgs as pseudo-Goldstone boson mechanism. We present two models which naturally implement this idea and extend one of them to include fermion masses. We examine the phenomenological consequences of this mechanism and present the favored parameter region. The perhaps most problematic aspect of SUSY GUT's is the d...

A Monopole-Antimonopole Solution of the SU(2) Yang-Mills-Higgs Model

Partial Path Integration of Quantum Fields: Two-Loop Analysis of the SU(2) Gauge-Higgs Model at Finite Temperature

High temperature reduction of the SU(2) Higgs model is realised by partially integrating its partition function. Various approximate forms of the effective theory resulting from the integration over nonstatic fields and the static electric potential are analysed. Also nonpolynomial and non-local terms are allowed. Consistency of the perturbative solution is ensured by new types of induced count...

On Nambu Monopole Dynamics in the SU(2) Lattice Higgs Model

It is shown that the SU(2) Higgs model on a lattice is equivalent to the Georgi–Glashow model in the limit of a small coupling constant between the Higgs and gauge fields. It can therefore be concluded that the transition between the confinement and symmetric phases in the 3 + 1 dimensional SU(2) Higgs model at finite temperature is accompanied by condensation of Nambu monopoles. According to o...

A “Littlest Higgs” Model with Custodial SU(2) Symmetry

In this note, a “littlest higgs” model is presented which has an approximate custodial SU(2) symmetry. The model is based on the coset space SO(9)/(SO(5)×SO(4)). The light pseudo-goldstone bosons of the theory include a single higgs doublet below a TeV and a set of three SU(2)W triplets and an electroweak singlet in the TeV range. All of these scalars obtain approximately custodial SU(2) preser...