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Related papers: First Axion Dark Matter Search with Toroidal Geome…

200 papers

We firstly report an axion haloscope search with toroidal geometry. In this pioneering search, we exclude the axion-photon coupling $g_{a\gamma\gamma}$ down to about $5\times10^{-8}$ GeV$^{-1}$ over the axion mass range from 24.7 to 29.1…

High Energy Physics - Experiment · Physics 2017-10-04 J. Choi , H. Themann , M. J. Lee , B. R. Ko , Y. K. Semertzidis

An axion dark matter search with the CAPP-8TB haloscope is reported. Our results are sensitive to axion-photon coupling $g_{a\gamma\gamma}$ down to the QCD axion band over the axion mass range between 6.62 and 6.82 $\mu$eV at a 90\%…

High Energy Physics - Experiment · Physics 2020-03-18 S. Lee , S. Ahn , J. Choi , B. R. Ko , Y. K. Semertzidis

We report the first search results for axion dark matter using an 18\,T high-temperature superconducting magnet haloscope. The scan frequency ranges from 4.7789 to 4.8094\,GHz. No significant signal consistent with the Galactic halo dark…

High Energy Physics - Experiment · Physics 2022-06-20 Youngjae Lee , Byeongsu Yang , Hojin Yoon , Moohyun Ahn , Heejun Park , Byeonghun Min , DongLak Kim , Jonghee Yoo

This Letter reports results from a haloscope search for dark matter axions with masses between 2.66 and 2.81 $\mu$eV. The search excludes the range of axion-photon couplings predicted by plausible models of the invisible axion. This…

The axion, which has yet to be discovered, is a promising candidate for dark matter that emerges from Peccei-Quinn theory. This article presents the search for axion dark matter with the "Student Project for an Axion Cavity Experiment"…

High Energy Physics - Experiment · Physics 2025-10-29 M. A. Akgümüs , N. Salama , J. Egge , E. Garutti , M. Maroudas , L. H. Nguyen , D. Leppla-Weber

This paper reports on a cavity haloscope search for dark matter axions in the galactic halo in the mass range $2.81$-$3.31$ ${\mu}eV$. This search excludes the full range of axion-photon coupling values predicted in benchmark models of the…

We report on the first results from a new microwave cavity search for dark matter axions with masses above $20~\mu\text{eV}$. We exclude axion models with two-photon coupling $g_{a\gamma\gamma} \gtrsim 2\times10^{-14}~\text{GeV}^{-1}$ over…

We report on a search for ultra-low-mass axion-like dark matter by analysing the ratio of the spin-precession frequencies of stored ultracold neutrons and $^{199}$Hg atoms for an axion-induced oscillating electric dipole moment of the…

High Energy Physics - Experiment · Physics 2018-05-28 N. J. Ayres

This paper presents the first search for dark matter axions with mass in the ranges 76.56 to 76.82 $\mu$eV and 79.31 to 79.53 $\mu$eV using a prototype setup for the MAgnetized Disk and Mirror Axion eXperiment (MADMAX). The experimental…

We report a pilot dark-matter search with a cryogenic, magnetized, scaled-down DALI prototype. An analysis of 36 hours of data reveals no statistically significant excess attributable to axionlike particles. We therefore set new exclusion…

The axion has emerged as the most attractive solution to two fundamental questions in modern physics related to the charge-parity invariance in strong interactions and the invisible matter component of our universe. Over the past decade,…

I present the first constraints on QCD axion dark matter using measurements from the James Webb Space Telescope. By utilizing publicly available MIRI and NIRSpec blank-sky observations, originally collected for sky subtraction purposes, I…

High Energy Physics - Phenomenology · Physics 2025-03-18 Elena Pinetti

Axions solve the Strong CP Problem and are a cold dark matter candidate. The combined constraints from accelerator searches, stellar evolution limits and cosmology suggest that the axion mass is in the range $3 \cdot 10^{-3} > m_a >…

High Energy Physics - Phenomenology · Physics 2007-05-23 Pierre Sikivie

We present a new exclusion bound of axion-like particle dark matter with axion-photon couplings above $\mathrm{10^{-13}}$ $\mathrm{GeV^{-1}}$ over the frequency range 4796.7--4799.5 MHz, corresponding to a narrow range of axion masses…

The axion is a promising dark matter candidate, which was originally proposed to solve the strong-CP problem in particle physics. To date, the available parameter space for axion and axion-like particle dark matter is relatively unexplored,…

Ultralight dark matter candidates, such as axions and dark photons, are leading dark matter candidates. They may couple feebly to photons, sourcing oscillating electromagnetic signals in the Earth's conducting cavity formed between the…

High Energy Physics - Phenomenology · Physics 2025-12-08 Ariel Arza , Yuanlin Gong , Jun Guo , Xiaofei Huang , Jing Shu , Hongliang Tian , Wenyu Wang , Kai Wei , Lei Wu , Mingming Xia , Jin Min Yang , Qiang Yuan , Yang Zhang , Yi Zhang , Bin Zhu

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 haloscopes represent the most sensitive tools for probing their…

High Energy Physics - Experiment · Physics 2024-11-19 Sungjae Bae , Junu Jeong , Younggeun Kim , SungWoo Youn , Heejun Park , Taehyeon Seong , Seongjeong Oh , Yannis K. Semertzidis

Axion is a promising candidate for ultralight dark matter which may cause a polarization rotation of laser light. Recently, a new idea of probing the axion dark matter by optical linear cavities used in the arms of gravitational wave…

High Energy Physics - Phenomenology · Physics 2021-09-29 Koji Nagano , Hiromasa Nakatsuka , Soichiro Morisaki , Tomohiro Fujita , Yuta Michimura , Ippei Obata

Existence of dark matter indicates the presence of unknown fundamental laws of nature. Ultralight axion-like particles are well-motivated dark matter candidates, emerging naturally from theories of physics at ultrahigh energies. We report…

High Energy Physics - Experiment · Physics 2021-01-11 Alexander V. Gramolin , Deniz Aybas , Dorian Johnson , Janos Adam , Alexander O. Sushkov

We report the results from a haloscope search for axion dark matter in the $3.3\text{-}4.2~{\mu}$eV mass range. This search excludes the axion-photon coupling predicted by one of the benchmark models of "invisible" axion dark matter, the…

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