Work

Electroweak Symmetry Restoration in Extended Higgs Sectors via Domain Walls

Year: 2024

Type: conference-paper

Abstract: Domain walls are a type of topological defects that can arise in the early universe after the spontaneous breaking of a discrete symmetry. This occurs in several beyond Standard Model theories with an extended Higgs sector such as the Next-to-Two-Higgs-Doublet model (N2HDM). In this talk, I will discuss the domain wall solution related to the singlet scalar of the N2HDM and demonstrate the possibility of electroweak symmetry restoration (EWSR) in the vicinity of the domain wall. Such symmetry restoration can have profound implications on the early universe cosmology as the sphaleron rate inside the domain wall would, in principle, be unsuppressed compared with the rate outside the wall.

Source: International Conference on High Energy Physics (ICHEP)

DOI: 10.22323/1.476.0714

Authors: Gudrid Moortgat-Pick, Mohamed Younes Sassi

Institutions: Universität Hamburg, Deutsches Elektronen-Synchrotron DESY

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: hybrid

Funder: Deutsche Forschungsgemeinschaft

Awards: G432818845, EXC 2121: Quantum Universe