Authors:	Hu, Wenxiang Lawson, Matthew M. Budker, Dmitry Figueroa, Nataniel L. Kimball, Derek F. Jackson Mills, Allen P. Jr. Voigt, Christian
Title:	A network of superconducting gravimeters as a detector of matter with feeble nongravitational coupling
Online publication date:	7-Jun-2021
Year of first publication:	2020
Language:	english
Abstract:	Hidden matter that interacts only gravitationally would oscillate at characteristic frequencies when trapped inside of Earth. For small oscillations near the center of the Earth, these frequencies are around 300 μHz. Additionally, signatures at higher harmonics would appear because of the non-uniformity of Earth’s density. In this work, we use data from a global network of gravimeters of the International Geodynamics and Earth Tide Service (IGETS) to look for these hypothetical trapped objects. We find no evidence for such objects with masses on the order of 1014 kg or greater with an oscillation amplitude of 0.1 re. It may be possible to improve the sensitivity of the search by several orders of magnitude via better understanding of the terrestrial noise sources and more advanced data analysis.
DDC:	530 Physik 530 Physics
Institution:	Johannes Gutenberg-Universität Mainz
Department:	FB 08 Physik, Mathematik u. Informatik
Place:	Mainz
ROR:	https://ror.org/023b0x485
DOI:	http://doi.org/10.25358/openscience-5973
Version:	Published version
Publication type:	Zeitschriftenaufsatz
License:	CC BY
Information on rights of use:	https://creativecommons.org/licenses/by/4.0/
Journal:	The European physical journal : D 74
Pages or article number:	115
Publisher:	Springer
Publisher place:	Berlin u.a.
Issue date:	2020
ISSN:	1434-6079
Publisher URL:	https://doi.org/10.1140/epjd/e2020-10069-8
Publisher DOI:	10.1140/epjd/e2020-10069-8
Appears in collections:	JGU-Publikationen