Würzburg 2018 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 6: Suche nach dunkler Materie I

T 6.6: Vortrag

Montag, 19. März 2018, 17:20–17:35, Philo-HS6

Potential sensitivity of dark-matter searches for hidden photons with the FUNK experiment — •Arnaud Andrianavalomahefa¹, Kai Daumiller¹, Babette Döbrich², Ralph Engel¹, Joerg Jaeckel³, Marek Kowalski^4,5, Axel Lindner⁴, Hermann-Josef Mathes¹, Javier Redondo⁶, Markus Roth¹, Thomas Schwetz-Mangold¹, Christoph M. Schäfer¹, 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

The FUNK experiment is dedicated to look for an eventual signal from a new subclass of light particles, dubbed hidden photons (HP), which could explain the whole cold dark matter. The experimental apparatus uses a large parabolic metallic mirror (∼ 15 m²) where a faint electromagnetic signal resulting from a HP-to-photon conversion may emerge from the mirror’s dielectric surface and gets focused at its center of curvature where a suitable detector is placed. Current measurements are performed in the optical range frequency and look for HP with mass ∼ 1 eV. The same setup is also suitable for a broadband scan in regime where diffraction effects can be neglected. We discuss the prospective sensitivity of FUNK in the terahertz domain.