Time dependent CP -even and CP -odd signatures of scalar ultralight dark matter in neutrino oscillations

Marta Losada, Yosef Nir, Gilad Perez, Inbar Savoray, Yogev Shpilman

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

Scalar ultralight 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 field 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, for both CP conserving and CPV couplings, and explain how they can be measured in current and future experiments.

Original languageEnglish
Article number055004
JournalPhysical Review D
Volume108
Issue number5
DOIs
Publication statusPublished - 1 Sept 2023

Funding

Funding Information: Y. N. is the Amos de-Shalit chair of theoretical physics and is supported by grants from the Israel Science Foundation (Grant No. 1124/20), the United States–Israel Binational Science Foundation (BSF), Jerusalem, Israel (Grant No. 2018257), by the Minerva Foundation (with funding from the Federal Ministry for Education and Research), and by the Yeda-Sela (YeS) Center for Basic Research. The work of G. P. is supported by grants from BSF-NSF, Friedrich Wilhelm Bessel research award, GIF, ISF, Minerva, SABRA—Yeda-Sela—WRC Program, the Estate of Emile Mimran, and The Maurice and Vivienne Wohl Endowment. I. S. is supported by a fellowship from the Ariane de Rothschild Women Doctoral Program. Publisher Copyright: © 2023 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3.

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Fingerprint

Dive into the research topics of 'Time dependent CP -even and CP -odd signatures of scalar ultralight dark matter in neutrino oscillations'. Together they form a unique fingerprint.

Cite this