Dirac Algebra Formalism for Two Higgs Doublet Models: the One-Loop Effective Potential
High Energy Physics - Phenomenology
2024-11-22 v3
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.
Keywords
Cite
@article{arxiv.2408.04511,
title = {Dirac Algebra Formalism for Two Higgs Doublet Models: the One-Loop Effective Potential},
author = {Apostolos Pilaftsis},
journal= {arXiv preprint arXiv:2408.04511},
year = {2024}
}
Comments
18 pages, further clarifications added, results generalised after lifting the constraint on {\zeta}^2, to appear in Physics Letters B