Würzburg 2018 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 28: Suche nach dunkler Materie II
T 28.5: Vortrag
Dienstag, 20. März 2018, 17:35–17:50, Philo-HS5
FUNK: Search for Hidden Photon Dark Matter in Visible Range — •Christoph M. Schäfer1, Arnaud Andrianavalomahefa1, Kai Daumiller1, Babette Döbrich2, Ralph Engel1, Joerg Jaeckel3, Marek Kowalski4,5, Axel Lindner4, Hermann-Josef Mathes1, Javier Redondo6, Markus Roth1, Thomas Schwetz-Mangold1, Ralf Ulrich1, and Darko Veberic1 — 1Institute for Nuclear Physics, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany — 2Physics Department, CERN, Geneva, Switzerland — 3Institute for Theoretical Physics, Heidelberg University, Germany — 4Deutsches Elektronen Synchrotron (DESY), Zeuthen, Germany — 5Department of Physics, Humboldt University, Berlin, Germany — 6Department of Theoretical Physics, University of Zaragoza, Spain
One possible candidate for the dark matter particles are hidden photons and, in case they exist and mix with ordinary tensor field, will be accompanied by a very small electric-field component, which on the surface of conducting materials converts into real photons. They are emitted nearly perpendicular to the surface and the frequency of the emitted real photons is matching the mass of the hidden photon. For this purpose a 14m2 spherical metallic mirror was set up. By placing different detectors inside the radius point of the mirror, we are able to access various mass ranges of the hidden photon. We report on an experimental measurement completed using a low-noise photomultiplier tube, which is sensitive in the visible and near-UV part of the spectrum and thus covers the eV-range of possible hidden photon masses.