Work

Dirac algebra formalism for Two Higgs Doublet Models: The one-loop effective potential

Year: 2024

Type: article

Abstract: We present a novel covariant bilinear formalism for the Two Higgs Doublet Model (2HDM) which utilises the Dirac algebra associated with the SL ( 2 , C ) group that acts on the scalar doublet field space. This Dirac-algebra approach enables us to obtain a fully O ( 1 , 3 ) -covariant and IR-safe expression for the one-loop effective potential. We illustrate how the formalism can be used to evaluate the breaking of global symmetries of the 2HDM potential by loop effects, in a field-reparameterisation invariant manner.

Source: Physics Letters B

DOI: 10.1016/j.physletb.2024.139147

Author: Apostolos Pilaftsis

Institution: University of Manchester

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

Funder: Science and Technology Facilities Council

Awards: G4406251952, G6861531787, Manchester Particle Theory Consolidated Grant 2022 : Particle Physics in Colliders and the Cosmos