Speaker
Dr
Woohyun Chung
(IBS/CAPP)
Description
A couple of years after the first installation of dilution refrigerators, IBS/CAPP has launched a pilot axion cavity experiment, CAPP-PACE, equipped with an 8 T superconducting magnet with 12 cm inner bore to search for microwave axions with a mass around 10 µeV. The experiment utilized a high Q-factor cavity with a piezoelectric frequency tuning system. The total system noise temperature was measured to be between 1 and 1.5 K. The axion dark matter physics data were taken during 2018, scanning frequencies about 250 MHz and then 1 MHz with 10*KSVZ and KSVZ sensitivity, respectively. Now the main focus of our research at this stage is on developing quantum noise-limited amplifiers and superconducting cavities. We present the results from the CAPP’s first physics data in the axion mass range around 10 µeV and the progress of R&D projects.
Primary author
Dr
Woohyun Chung
(IBS/CAPP)
Co-authors
Mr
Caglar Kutlu
(KAIST/IBS/CAPP)
Mr
Danho Ahn
(Institute for Basic Science, Center for Axion and Precision Physics Research)
Prof.
Jihn Kim
(Kyunghee U.)
Mr
Jinsu Kim
(KAIST/IBS/CAPP)
Dr
Ohjoon Kwon
(Institute for basic science)
Prof.
Yannis Semertzidis
(IBS/CAPP)
