After an introduction to the Higgs sector of supersymmetric extensions of the Standard Model, recent results on radiative corrections to Higgs boson masses and couplings are reviewed. The phenomenology of supersymmetric Higgs searches at large hadron colliders and at a possible linear ee collider is also described. Invited talk at the Workshop ‘Ten years of SUSY confronting experiment’, CERN, 7...

We analyze a composite Higgs model based on the confining $SU(3)$ gauge theory with ${N}_{f}=8$ Dirac fermions in fundamental representation. This has been studied lattice and shown to be well described by dilaton effective field (EFT). Here we modify EFT assigning standard-model quantum numbers such that four of pseudo-Nambu-Goldstone boson (pNGB) fields form doublet, coupling it top quark add...

We show some results in the minimal supersymmetric Standard Model (MSSM) and the two Higgs doublet model (THDM) for WH production cross sections at ee and hadron colliders. 1 We demonstrate that the predictions for the cross sections in the two models can be vastly different. Observing these processes, once the existence of a charged Higgs is established, might shed some light on the underlying...

We consider the creation of non-zero Chern-Simons number in a model of the early Universe, where the Higgs field experiences a fast quench at the end of inflation. We perform numerical lattice simulations in the Abelian Higgs model in 1+1 dimensions and in the SU(2)-Higgs model in 3+1 dimensions with an added effective CP-violating term. We also comment on the appropriate choice of vacuum initi...

We discuss the strength of the trilinear Higgs boson coupling in technicolor (or composite) models in a model independent way. The coupling is determined as a function of a very general ansatz for the technicolor self-energy, and turns out to be equal or smaller than the one of the standard model Higgs boson depending on the dynamics of the theory. With this trilinear coupling we estimate the c...