We present an update of the Standard Model fit to electroweak precision data. We include
newest experimental results on the top-quark mass, the W mass and width, and the Higgs …

The lightest Higgs scalar boson mass in supersymmetry can be raised significantly by extra
vectorlike quark and lepton supermultiplets with large Yukawa couplings but dominantly …

We investigate theories in which the technifermions in higher dimensional representations of
the technicolor gauge group dynamically break the electroweak symmetry of the standard …

In the light of the LHC, we revisit the implications of a fourth generation of chiral matter. We
identify a specific ensemble of particle masses and mixings that are in agreement with all …

This chapter of the “Flavor in the era of LHC” workshop report discusses flavor-related
issues in the production and decays of heavy states at the LHC at high momentum transfer …

The strongest constraint on V tb presently comes from the 3× 3 unitarity of the CKM matrix,
which fixes V tb to be very close to one. If unitarity is relaxed, current information from top …

We review the past and current status of the extension of the standard model (SM) by a
fourth generation of fermions. In particular the new results for Higgs boson searches at the …

Minimal walking technicolor models can provide a nontrivial solution for cosmological dark
matter, if the lightest technibaryon is doubly charged. Technibaryon asymmetry generated in …

The hypothesis of a heavy stable quark of the fourth family can provide a nontrivial solution
for cosmological dark matter if baryon asymmetry in the fourth family has a negative sign and …

We investigate the experimentally allowed parameter space of an extension of the standard
model (SM3) by one additional family of fermions. Therefore we extend our previous study of …