Work

CP-violation in the Weinberg 3HDM potential

Year: 2025

Type: article

Abstract: A bstract We explore the phenomenology of Weinberg’s ℤ 2 × ℤ 2 symmetric three-Higgs-doublet potential, allowing for spontaneous violation of CP due to complex vacuum expectation values. An overview of all possible ways of satisfying the stationary-point conditions is given, with one, two or three non-vanishing vacuum expectation values, together with conditions for CP conservation in terms of basis invariants. All possible ways of satisfying the conditions for CP conservation are given. Scans of allowed parameter regions are given, together with measures of CP violation, in terms of the invariants. The light states identified in an earlier paper are further explored in terms of their CP-violating couplings. Loop-induced CP violation in WWZ couplings, as well as charge-asymmetric scattering are also commented on.

Source: Journal of High Energy Physics

DOI: 10.1007/jhep09(2025)111

Authors: O. M. Ogreid, P. Osland, M. N. Rebelo

Institutions: Western Norway University of Applied Sciences, University of Bergen, University of Lisbon

Language: English

Topic: Particle physics theoretical and experimental studies

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: diamond