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Peer-reviewedCC BY 4.0Journal of High Energy Physics

Scrutinizing the KNT model with vacuum stability conditions

  • Tim Huesmann1
  • Michael Klasen1,2
  • Vishnu P. K.1
  1. 1Universität Münster
  2. 2The University of New South Wales
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Abstract

A bstract : The Krauss-Nasri-Trodden (KNT) model provides a unified framework for addressing the smallness of neutrino masses (by a three-loop radiative mechanism) and the dark matter abundance (via thermal freeze-out) simultaneously. In this work, we investigate the implications of renormalization group effects on the model’s parameter space. To this end, we perform a Markov Chain Monte Carlo analysis to identify the viable regions of parameter space that are consistent with all the relevant experimental and theoretical constraints at low energies. We show that a significant portion of the low-energy viable region is incompatible with the vacuum stability conditions once the renormalization group effects are taken into account. Most of the remaining parameter space of the model can be probed in future charged lepton flavor violating experiments.

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Cite

BibTeXRIS
BibTeX
@article{huesmann2026scrutinizing,
  title = {{Scrutinizing the KNT model with vacuum stability conditions}},
  author = {Tim Huesmann and Michael Klasen and Vishnu P. K.},
  journal = {Journal of High Energy Physics},
  year = {2026},
  month = oct,
  doi = {10.1007/jhep10(2026)063},
  url = {https://link.springer.com/10.1007/JHEP10(2026)063},
  note = {CC BY 4.0},
}
RIS
TY  - JOUR
TI  - Scrutinizing the KNT model with vacuum stability conditions
AU  - Tim Huesmann
AU  - Michael Klasen
AU  - Vishnu P. K.
PY  - 2026
DA  - 2026/10/07
JO  - Journal of High Energy Physics
DO  - 10.1007/jhep10(2026)063
UR  - https://link.springer.com/10.1007/JHEP10(2026)063
AB  - A bstract : The Krauss-Nasri-Trodden (KNT) model provides a unified framework for addressing the smallness of neutrino masses (by a three-loop radiative mechanism) and the dark matter abundance (via thermal freeze-out) simultaneously. In this work, we investigate the implications of renormalization group effects on the model’s parameter space. To this end, we perform a Markov Chain Monte Carlo analysis to identify the viable regions of parameter space that are consistent with all the relevant experimental and theoretical constraints at low energies. We show that a significant portion of the low-energy viable region is incompatible with the vacuum stability conditions once the renormalization group effects are taken into account. Most of the remaining parameter space of the model can be probed in future charged lepton flavor violating experiments.
SN  - 1029-8479
ER  -