Work

Theorem on vacuum stability

Year: 2025

Type: article

Abstract: We consider an extension of the Standard Model with one or more scalar multiplets beyond the Higgs doublet Φ . The additional scalar multiplets are supposed to carry arbitrary hypercharges (the precise conditions on the scalar potential are less stringent). We prove that, in such a model, if the field configuration where only Φ has a nonzero vacuum expectation value (VEV) is a local minimum of the potential, then it has a lower value of the potential than any extremum where both Φ and other scalar multiplets have nonzero VEVs.

Source: Physical review. D/Physical review. D.

DOI: 10.1103/kzm7-h6n5

Authors: André Milagre, Luís Lavoura

Institutions: University of Lisbon, Centro de Física Teórica de Partículas

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

Funders: CERN, Fundação para a Ciência e a Tecnologia