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High Energy Physics - Phenomenology

arXiv:2408.04511 (hep-ph)
[Submitted on 8 Aug 2024 (v1), last revised 21 Nov 2024 (this version, v3)]

Title:Dirac Algebra Formalism for Two Higgs Doublet Models: the One-Loop Effective Potential

Authors:Apostolos Pilaftsis
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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.
Comments: 18 pages, further clarifications added, results generalised after lifting the constraint on ΞΆ^2, to appear in Physics Letters B
Subjects: High Energy Physics - Phenomenology (hep-ph)
Cite as: arXiv:2408.04511 [hep-ph]
  (or arXiv:2408.04511v3 [hep-ph] for this version)
  https://doi.org/10.48550/arXiv.2408.04511

Submission history

From: Apostolos Pilaftsis [view email]
[v1] Thu, 8 Aug 2024 15:08:18 UTC (36 KB)
[v2] Wed, 14 Aug 2024 15:54:32 UTC (37 KB)
[v3] Thu, 21 Nov 2024 16:28:59 UTC (37 KB)
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