Probing scalar dark matter oscillations with neutrino oscillations

Marta Losada, Yosef Nir, Gilad Perez, Yogev Shpilman*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)

Abstract

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
Article number30
Number of pages30
JournalThe journal of high energy physics
Volume2022
Issue number4
DOIs
Publication statusPublished - 7 Apr 2022

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