6 papers
Design of ALPHA Phase I: A Plasma Haloscope for 10--20 GHz Post-Inflation Axions
ALPHA Collaboration, Xiran Bai, Rustam Balafendiev +54
The axion is a well-motivated hypothetical particle capable of resolving both the strong CP problem and the dark matter mystery, with recent post-inflationary cosmological simulati…
Extended Haloscope Search and Exclusion of a Candidate Signal near 1.036 GHz
Saebyeok Ahn, Boris I. Ivanov, Ohjoon Kwon +33
We report a follow-up axion haloscope search near 1.036 GHz that completes and extends our previous work [Phys. Rev. X 14, 031023 (2024)], in which a portion of the HEMT-based data…
Search for high-frequency gravitational waves via re-analysis of cavity axion data
Younggeun Kim, Jordan Gué, Changhao Xu +17
Monochromatic high-frequency gravitational waves (HFGW) provide a distinctive probe of new physics scenarios, most notably axion clouds around rotating black holes formed via super…
Probing KSVZ Axion Dark Matter near 5.9 GHz Using a 8-Cell Cavity Haloscope
Saebyeok Ahn, Caglar Kutlu, Soohyung Lee +9
We report on a search for axion dark matter in the frequency range near 5.9 GHz, conducted using the haloscope technique. The experiment employed an 8-cell microwave resonator desi…
Axion Dark Matter Search with Near-KSVZ Sensitivity Using the TM Mode
Sungjae Bae, Junu Jeong, Younggeun Kim +9
Dark matter remains one of the most profound mysteries in modern physics, with axions, a hypothetical particle proposed to resolve the strong CP problem, standing as a compelling c…
Search for Dark Matter Axions with Tunable TM_020 mode
Sungjae Bae, Junu Jeong, Younggeun Kim +5
Axions are hypothesized particles believed to potentially resolve two major puzzles in modern physics: the strong CP problem and the nature of dark matter. Cavity-based axion halos…