• Open Access

Limits from the FUNK experiment on the mixing strength of hidden-photon dark matter in the visible and near-ultraviolet wavelength range

Arnaud Andrianavalomahefa, Christoph M. Schäfer, Darko Veberič, Ralph Engel, Thomas Schwetz, Hermann-Josef Mathes, Kai Daumiller, Markus Roth, David Schmidt, Ralf Ulrich, Babette Döbrich, Joerg Jaeckel, Marek Kowalski, Axel Lindner, and Javier Redondo (The FUNK Experiment)
Phys. Rev. D 102, 042001 – Published 4 August 2020

Abstract

We present results from the FUNK experiment in the search for hidden-photon dark matter. Near the surface of a mirror, hidden photons may be converted into ordinary photons. These photons are emitted perpendicularly to the surface and have an energy equal to the mass of the dark matter hidden photon. Our experimental setup consists of a large, spherical mirror with an area of more than 14m2, which concentrates the emitted photons into its central point. Using a detector sensitive to visible and near-UV photons, we can exclude a kinetic-mixing coupling of stronger than χ1012 in the mass range of 2.5 to 7 eV, assuming hidden photons comprise all of the dark matter. The experimental setup and analysis used to obtain this limit are discussed in detail.

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  • Received 27 April 2020
  • Accepted 16 July 2020

DOI:https://doi.org/10.1103/PhysRevD.102.042001

Published by the American Physical Society under the terms of the 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.

Published by the American Physical Society

Physics Subject Headings (PhySH)

Gravitation, Cosmology & AstrophysicsParticles & Fields

Authors & Affiliations

Arnaud Andrianavalomahefa, Christoph M. Schäfer, Darko Veberič*, Ralph Engel, Thomas Schwetz, Hermann-Josef Mathes, Kai Daumiller, Markus Roth, David Schmidt, and Ralf Ulrich

  • Institute for Nuclear Physics, Karlsruhe Institute of Technology (KIT), Postfach 3640, 76021 Karlsruhe, Germany

Babette Döbrich

  • Experimental Physics Department, CERN, P.O. Box 1211, Geneva 23, Switzerland

Joerg Jaeckel

  • Institute for Theoretical Physics, Heidelberg University, Philosophenweg 16, 69120 Heidelberg, Germany

Marek Kowalski

  • Deutsches Elektronen Synchrotron (DESY), Notkestr. 85, 22607 Hamburg, Germany and Department of Physics, Humboldt University, Newtonstr. 15, 12489 Berlin, Germany

Axel Lindner

  • Deutsches Elektronen Synchrotron (DESY), Notkestr. 85, 22607 Hamburg, Germany

Javier Redondo

  • Department of Theoretical Physics, Faculty of Sciences, Pedro Cerbuna 12, 50009 Zaragoza, Spain

  • *darko.veberic@kit.edu

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Issue

Vol. 102, Iss. 4 — 15 August 2020

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