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Uncertainties in the neutrino fog: Studying the isospin-violating dark matter case

Laura Duque*, J. M. Lamprea†, and O. G. Miranda‡

  • *Contact author: laura.duque@cinvestav.mx
  • †Contact author: jorge.lamprea@cinvestav.mx
  • ‡Contact author: omar.miranda@cinvestav.mx
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Phys. Rev. D 114, 035002 – Published 3 August, 2026

DOI: https://doi.org/10.1103/f3w6-f8sp

Abstract

First observation of solar neutrinos through coherent elastic neutrino-nucleus scattering by dark matter (DM) direct detection experiments makes the study of the neutrino fog of the most relevance. This irreducible neutrino background depends on the target material as well as other experimental parameters. Recently, the dependence of the neutrino fog on the DM models under consideration has also been remarked on. In this work, we study the case of isospin-violating dark matter (IVDM) models, discussing specific examples of DM models and making a detailed analysis of the implications of IVDM on the neutrino fog. We also explore the conditions under which this background can be mitigated for specific DM models.

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Phys. Rev. D 114, 035002– Published 3 August, 2026
  • Received 13 January 2026
  • Accepted 9 July 2026
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