Authors:	Tretiak, Oleg Zhang, Xue Figueroa, Nataniel L. Antypas, Dionysios Brogna, Andrea Banerjee, Abhishek Perez, Gilad Budker, Dmitry
Title:	Improved bounds on ultralight scalar dark matter in the radio-frequency range
Online publication date:	27-Apr-2023
Year of first publication:	2022
Language:	english
Abstract:	We present a search for fundamental constant oscillations in the range 20 kHz–100 MHz that may arise within models for ultralight dark matter (UDM). Using two independent optical-spectroscopy apparatuses, we achieve up to × 1000 greater sensitivity in the search relative to previous work [D. Antypas et al., Phys. Rev. Lett. 123, 141102 (2019).]. We report no observation of UDM and thus constrain respective couplings to electrons and photons within the investigated UDM particle mass range 8 × 10 − 11 – 4 × 10 − 7 eV . The constraints significantly exceed previously set bounds from atomic spectroscopy and, as we show, may surpass in future experiments those provided by equivalence-principle (EP) experiments in a specific case regarding the combination of UDM couplings probed by the EP experiments.
DDC:	530 Physik 530 Physics
Institution:	Johannes Gutenberg-Universität Mainz
Department:	FB 08 Physik, Mathematik u. Informatik Helmholtz Institut Mainz
Place:	Mainz
ROR:	https://ror.org/023b0x485
DOI:	http://doi.org/10.25358/openscience-8908
Version:	Published version
Publication type:	Zeitschriftenaufsatz
Document type specification:	Scientific article
License:	CC BY
Information on rights of use:	https://creativecommons.org/licenses/by/4.0/
Journal:	Physical Review Letters 129
Pages or article number:	031301
Publisher:	American Physical Society
Publisher place:	College Park, Md
Issue date:	2022
ISSN:	1079-7114
Publisher DOI:	10.1103/physrevlett.129.031301
Appears in collections:	DFG-491381577-H