Blar i Bergen Open Research Archive på forfatter "Øgreid, Odd Magne"
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Testing the presence of CP violation in the 2HDM
Grzadkowski, Bohdan; Øgreid, Odd Magne; Osland, Per (Peer reviewed; Journal article, 2015-04-27)We review CP properties of the Two-Higgs-Doublet model. In particular, we show that sponta- neous CP violation occurs in the parameter space on the border between regions allowing explicit CP violation and those where there ... -
Two dark matter candidates in three-Higgs-doublet models with S3 symmetry
Kuncinas, Anton; Øgreid, Odd Magne; Osland, Per; Rebelo, Margarida Nesbitt (Journal article; Peer reviewed, 2022)Models with an extended scalar electroweak sector can have vanishing vacuum expectation values in a basis where an underlying symmetry is imposed. Such extensions are very well motivated. If a symmetry prevents couplings ... -
Update on the CP-Violating Inert-Doublet Model
Grzadkowski, Bohdan; Øgreid, Odd Magne; Osland, Per; Pukhov, Alexander; Purmohammadi, Mahdi (Peer reviewed; Journal article, 2012)We have updated a recently proposed extension of the Inert Doublet Model. The extension amounts to the addition of an extra non-inert scalar doublet. The model thus offers a possibility of CP violation in the scalar sector ... -
Weinberg’s 3HDM potential with spontaneous CP violation
Plantey, Robin Maurice Yves; Øgreid, Odd Magne; Osland, Per; Rebelo, Margarida N.; Solberg, Rolf Marius Aase (Journal article; Peer reviewed, 2023)We study the potential of Weinberg’s Z2×Z2-symmetric three-Higgs-doublet model. The potential is designed to accommodate CP violation in the scalar sector within a gauge theory, while at the same time allowing for natural ...