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High Energy Physics - Phenomenology

arXiv:2302.00005 (hep-ph)
[Submitted on 31 Jan 2023]

Title:Time Dependent CP-even and CP-odd Signatures of Scalar Ultra-light Dark Matter in Neutrino Oscillations

Authors:Marta Losada, Yosef Nir, Gilad Perez, Inbar Savoray, Yogev Shpilman
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Abstract:Scalar ultra-light dark matter (ULDM) interacting with neutrinos can induce, under certain conditions, time-dependent modifications to neutrino oscillation probabilities. The limit in which the ULDM perturbation can be treated as constant throughout the neutrino propagation time has been addressed by several previous works. We complement these by systematically analyzing the opposite limit -- accounting for the temporal-variations of the ULDM potential by solving time-dependent Schrödinger equations. In particular, we study a novel two-generations-like CP violating (CPV) signature unique to rapidly oscillating ULDM. We derive the leading order, time-dependent, corrections to the oscillation probabilities, both for CP conserving (CPC) and CPV couplings, and explain how they can be measured in current and future experiments.
Comments: 23 pages, 1 figure
Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Experiment (hep-ex)
Cite as: arXiv:2302.00005 [hep-ph]
  (or arXiv:2302.00005v1 [hep-ph] for this version)
  https://doi.org/10.48550/arXiv.2302.00005

Submission history

From: Inbar Savoray [view email]
[v1] Tue, 31 Jan 2023 19:00:00 UTC (507 KB)
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