16th Patras Workshop on Axions, WIMPs and WISPs

Session

Session 14

Jun 17, 2021, 2:50 PM

Online Workshop

Conveners

Session 14

• Wolfgang Funk

92. Status of CASPEr-gradient and study of its quantum sensitivity limits

Hendrik Bekker (Johannes Gutenberg University of Mainz)

6/17/21, 2:50 PM

The cosmic axion spin precession experiment (CASPEr) is a nuclear magnetic resonance experiment to search for axion and axion-like particles (ALPs) that possibly make up a significant portion of dark matter in the Universe [1,2]. Due to the pseudoscalar nature and the light mass of ALPs, they can be treated as a field exerting a time-varying torque on nuclear spins either directly or through...

77. Searches for high frequency axions at IBS/CAPP

Junu Jeong (IBS/CAPP)

6/17/21, 3:25 PM

Multiple-cell cavities were designed by IBS/CAPP to access high frequency regions while maximally utilizing the volume of a given solenoid for cavity haloscopes. We conducted the first multiple-cell haloscope experiment, CAPP-9T MC, using a double-cell cavity mounted in JANIS He-3 cryogenic system equipped with a 9T superconducting magnet. We obtained a new limit for $g_{a\gamma\gamma}$ that...

102. Dark Matter Scattering in Optomechanical Experiments

Prof. Martin Spinrath (National Tsing Hua University (NTHU))

6/17/21, 3:50 PM

We will discuss our recent work on the possibility to look for dark matter scattering at gravitational wave detectors and optomechanical setups in general. For particle dark matter this should induce an effect very similar to Brownian motion. We will present results from a particle physicist's and a gravitational wave astronomer's point of view.

154. Searching for axion-like dark matter with CASPEr-electric

Deniz Aybas (Boston University)

6/17/21, 4:10 PM