31 citations · 58 across the 7 of their papers we have counts for
7 papers
CP violation in H^\pm \to W^\pm Z: A physical approach for the 2HDM
Wafaa Khater, Odd Magne Ogreid, Per Osland +1
We investigate CP violation in the process H^\pm \to W^\pm Z within the framework of the two-Higgs-Doublet model (2HDM). Amplitudes are expressed transparently in terms of physical…
Systematic analysis of 3HDM symmetries
A. Kunčinas, P. Osland, M. N. Rebelo
Symmetries play a crucial role in shaping the structure and predictions of multi-Higgs-doublet models. In three-Higgs-doublet models considerable effort has been put into classifyi…
CP-violation in the Weinberg 3HDM potential
O. M. Ogreid, P. Osland, M. N. Rebelo
We explore the phenomenology of Weinberg's symmetric three-Higgs-doublet potential, allowing for spontaneous violation of CP due to complex vacuum expectation value…
-charged Dark Matter in three-Higgs-doublet models
A. Kunčinas, P. Osland, M. N. Rebelo
We explore three-Higgs-doublet models that may accommodate scalar Dark Matter where the stability is based on an unbroken -based symmetry, rather than the familiar $\mathbb{Z…
A Simple Method to detect spontaneous CP Violation in multi-Higgs models
O. M. Ogreid, P. Osland, M. N. Rebelo
For models with several Higgs doublets we present an alternative method to the one proposed by Branco, Gerard and Grimus, in 1984, to check whether or not CP is spontaneously viola…
CP Violation in the scalar sector
D. Emmanuel-Costa, O. M. Ogreid, P. Osland +1
Models with an extended scalar sector may in principle provide new sources of CP violation originating in the scalar potential. One of the simplest ways to implement this idea is t…
Spontaneous symmetry breaking in the -symmetric scalar sector
D. Emmanuel-Costa, O. M. Ogreid, P. Osland +1
We present a detailed study of the vacua of the -symmetric three-Higgs-doublet potential, specifying the region of parameters where these minimisation solutions occur. We work…