401 citations · 977 across the 12 of their papers we have counts for
5 papers · 1 filter
A precision constraint on multi-Higgs-doublet models
W. Grimus, L. Lavoura, O. M. Ogreid +1
We derive a general expression for Delta rho (or, equivalently, for the oblique parameter T) in the SU(2) x U(1) electroweak model with an arbitrary number of scalar SU(2) doublets…
Radiative gravitino decays from R-parity violation
S. Lola, P. Osland, A. R. Raklev
We study radiative gravitino decay within the framework of R-violating supersymmetry. For trilinear R-violating couplings that involve the third generation of fermions, or for ligh…
Constraining the Two-Higgs-Doublet-Model parameter space
Abdul Wahab El Kaffas, Odd Magne Ogreid, Per Osland
We confront the Two-Higgs-Doublet Model with a variety of experimental constraints as well as theoretical consistency conditions. The most constraining data are the \bar B\to X_sγd…
CP violation in unpolarized e^+ e^- to charginos at one loop level
P. Osland, A. Vereshagin
We study CP violation in e^+ e^- to \tildeχ_i^+\tildeχ_j^- in the framework of the MSSM. Though the cross section of this process is CP-even at the tree level even for polarized el…
CP Violation, Stability and Unitarity of the Two Higgs Doublet Model
Abdul Wahab El Kaffas, Odd Magne Ogreid, Per Osland
The Two-Higgs-Doublet Model is considered, in its CP-non-conserving version. It is shown quantitatively how vacuum stability and tree-level unitarity in the Higgs-Higgs-scattering…