Projects per year
Abstract
Axions are a well-motivated dark matter candidate, with a host of experiments around the world searching for direct evidence of their existence. The ORGAN Experiment is a type of axion detector known as an axion haloscope, which takes the form of a cryogenic resonant cavity embedded in a strong magnetic field. ORGAN recently completed Phase 1a, a scan for axions approximate to 65 mu eV, and placed the most stringent limits to date on the dark matter axion-photon coupling in this region, |ga gamma gamma|<= 3x10-12. It has been shown that axion haloscopes such as ORGAN are automatically sensitive to other kinds of dark matter candidates, such as dark photons, scalar field/dilaton dark matter, and exotic axion-electromagnetic couplings motivated by quantum electromagnetodynamics. The exclusion limits placed on these various dark matter candidates are computed by ORGAN 1a, and sensitivity for some future ORGAN phases are projected. In particular, the dark photon limits are the most sensitive to date in some regions of the parameter space.
Original language | English |
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Article number | 2200622 |
Number of pages | 8 |
Journal | Annalen der Physik |
Volume | 536 |
Issue number | 1 |
Early online date | 6 Jun 2023 |
DOIs | |
Publication status | Published - Jan 2024 |
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Centre of Excellence for Dark Matter Particle Physics
Barberio, E. (Investigator 01), Williams, A. (Investigator 02), Bell, N. (Investigator 03), Stuchbery, A. (Investigator 04), Tobar, M. (Investigator 05), Boehm, C. (Investigator 06) & Wallner, A. (Investigator 07)
ARC Australian Research Council
1/01/20 → 31/12/26
Project: Research
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Wideband Tuneable Low Phase Noise Oscillators for 5G
Tobar, M. (Investigator 01), Goryachev, M. (Investigator 02) & Ivanov, E. (Investigator 03)
ARC Centre of Excellence for Engineered Quantum Systems
1/01/21 → 31/12/21
Project: Research