Probing scalar dark matter oscillations with neutrino oscillations

Marta Losada, Yosef Nir, Gilad Perez, Yogev Shpilman

Research output: Contribution to journalArticlepeer-review


If ultra-light dark matter (ULDM) exists and couples to neutrinos, it can be discovered via time-periodic variations in the neutrino mass and mixing parameters. We analyze the current bounds on such a scenario and establish the sensitivity expected for both time-averaged and time-resolved modulations in future neutrino oscillation experiments. We place a special emphasis in our analysis on time modulations of the CP violating mixing phase. We illustrate with a toy model the case where the leading modulation effect can be CP violating while the effect on CP conserving parameters is suppressed. We show a unique imprint that a time-averaged CP violating modulation of ULDM can leave in neutrino oscillations, while direct CP asymmetries vanish.

Original languageEnglish (US)
Article number30
JournalJournal of High Energy Physics
Issue number4
StatePublished - Apr 2022


  • Models for Dark Matter
  • Neutrino Interactions
  • New Light Particles
  • Non-Standard Neutrino Properties

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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