VISH<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si79.svg" display="inline" id="d1e4763"><mml:mi>ν</mml:mi></mml:math>: solving five Standard Model shortcomings with a Poincaré-protected electroweak scale

Sopov, Alexei H.; Volkas, Raymond R.

doi:10.1016/j.dark.2023.101381

Physics of the Dark Universe

2023

DOI: 10.1016/j.dark.2023.101381

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VISHν: solving five Standard Model shortcomings with a Poincaré-protected electroweak scale

Alexei H. Sopov,

Raymond R. Volkas

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2024

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Cited by 3 publications

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Classification of three-family flavoured DFSZ axion models that have no domain wall problem

Cox,

Dolan,

Hayat

et al. 2024

J. High Energ. Phys.

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We provide an exhaustive classification of three-family DFSZ axion models that have no cosmological domain wall problem. This result is obtained by making the Peccei-Quinn symmetry flavour dependent in certain specific ways, thus reinforcing a possible connection between the strong CP problem and the flavour puzzle. Known DFSZ flavour variants such as the top-specific model emerge as special cases. Key features of the phenomenology of these models are briefly discussed.

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Classification of three-family flavoured DFSZ axion models that have no domain wall problem

Cox,

Dolan,

Hayat

et al. 2024

J. High Energ. Phys.

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Inflation and Higgs phenomenology in a model unifying the DFSZ axion with the majoron

Matlis,

Dutta,

Moortgat-Pick

et al. 2024

J. Cosmol. Astropart. Phys.

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The Two-Higgs-Doublet-Standard Model-Axion-Seesaw-Higgs-Portal inflation (2hdSMASH) model consisting of two Higgs doublets, a Standard Model (SM) singlet complex scalar and three SM singlet right-handed neutrinos can embed axion dark matter, neutrino masses and address inflation. We report on an investigation of the inflationary aspects of 2hdSMASH and its subsequent impact on low energy phenomenology. In particular, we identify inflationary directions for which the parameter values required for successful inflation do not violate perturbative unitarity and boundedness-from-below conditions. By analyzing the renormalization-group flow of the parameters we identify the necessary and sufficient constraints for running all parameters perturbatively and maintaining stability from the electroweak to the PLANCK scale. We observe that stringent constraints arise on the singlet scalar self coupling from inflationary constraints, i.e., λS ∼ 10-10. Further, we find that all theoretical and experimental constraints are satisfied if the portal couplings are typically in the range (v/vS ) and (v/vS )2 (where v, vS refer to the electroweak and singlet scalar vacuum expectation value respectively). As a consequence, inflation is realized in a variety of field space directions in the effective single field regime. Finally we provide testable benchmark scenarios at colliders.

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Axion Paradigm with Color-Mediated Neutrino Masses

Batra,

Câmara,

Joaquim

et al. 2024

Phys. Rev. Lett.

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VISHν: solving five Standard Model shortcomings with a Poincaré-protected electroweak scale

Cited by 3 publications

References 143 publications

Classification of three-family flavoured DFSZ axion models that have no domain wall problem

Classification of three-family flavoured DFSZ axion models that have no domain wall problem

Inflation and Higgs phenomenology in a model unifying the DFSZ axion with the majoron

Axion Paradigm with Color-Mediated Neutrino Masses

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