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Detection of axion dark matter heavier than a meV is hindered by its small wavelength, which limits the useful volume of traditional experiments. This problem can be avoided by directly detecting in-medium excitations, whose $\sim…

High Energy Physics - Phenomenology · Physics 2025-04-18 Asher Berlin , Tanner Trickle

The ADMX collaboration gathered data for its Run 1A axion dark matter search from January to June 2017, scanning with an axion haloscope over the frequency range 645-680 MHz (2.66-2.81 ueV in axion mass) at DFSZ sensitivity. The resulting…

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…

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…

Axions are a well-motivated candidate for dark matter. The preeminent method to search for axion dark matter is known as the axion haloscope, which makes use of the conversion of axions to photons in a large magnetic field. Due to the weak…

We propose an approach to search for axion dark matter with a specially designed superconducting radio frequency cavity, targeting axions with masses $m_a \lesssim 10^{-6} \text{ eV}$. Our approach exploits axion-induced transitions between…

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

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 Letter reports on the first results from the Taiwan Axion Search Experiment with Haloscope, a search for axions using a microwave cavity at frequencies between 4.70750 and 4.79815 GHz. Apart from the non-axion signals, no candidates…

The standard model axion seesaw Higgs portal inflation (SMASH) model is a well motivated, self-contained description of particle physics over a range of energy scales that predicts axion dark matter particles to exist within the mass range…

High Energy Physics - Experiment · Physics 2022-07-12 Aaron P. Quiskamp , Ben T. McAllister , Paul Altin , Eugene N. Ivanov , Maxim Goryachev , Michael E. Tobar

In cavity-based axion dark matter detectors, quantum noise remains a primary barrier to achieving the scan rate necessary for a comprehensive search of axion parameter space. Here we introduce a method of scan rate enhancement in which an…

Quantum Physics · Physics 2022-04-26 K. Wurtz , B. M. Brubaker , Y. Jiang , E. P. Ruddy , D. A. Palken , K. W. Lehnert

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

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 present the results of a search for dark matter WIMPs in the mass range below 20 GeV/c^2 using a target of low-radioactivity argon. The data were obtained using the DarkSide-50 apparatus at Laboratori Nazionali del Gran Sasso (LNGS). The…

High Energy Astrophysical Phenomena · Physics 2018-08-29 The DarkSide Collaboration , P. Agnes , I. F. M. Albuquerque , T. Alexander , A. K. Alton , G. R. Araujo , D. M. Asner , M. Ave , H. O. Back , B. Baldin , G. Batignani , K. Biery , V. Bocci , G. Bonfini , W. Bonivento , B. Bottino , F. Budano , S. Bussino , M. Cadeddu , M. Cadoni , F. Calaprice , A. Caminata , N. Canci , A. Candela , M. Caravati , M. Cariello , M. Carlini , M. Carpinelli , S. Catalanotti , V. Cataudella , P. Cavalcante , S. Cavuoti , R. Cereseto , A. Chepurnov , C. Cicalò , L. Cifarelli , A. G. Cocco , G. Covone , D. D'Angelo , M. D'Incecco , D. D'Urso , S. Davini , A. De Candia , S. De Cecco , M. De Deo , G. De Filippis , G. De Rosa , M. De Vincenzi , P. Demontis , A. V. Derbin , A. Devoto , F. Di Eusanio , G. Di Pietro , C. Dionisi , M. Downing , E. Edkins , A. Empl , A. Fan , G. Fiorillo , K. Fomenko , D. Franco , F. Gabriele , A. Gabrieli , C. Galbiati , P. Garcia Abia , C. Ghiano , S. Giagu , C. Giganti , G. K. Giovanetti , O. Gorchakov , A. M. Goretti , F. Granato , M. Gromov , M. Guan , Y. Guardincerri , M. Gulino , B. R. Hackett , M. H. Hassanshahi , K. Herner , B. Hosseini , D. Hughes , P. Humble , E. V. Hungerford , Al. Ianni , An. Ianni , V. Ippolito , I. James , T. N. Johnson , Y. Kahn , K. Keeter , C. L. Kendziora , I. Kochanek , G. Koh , D. Korablev , G. Korga , A. Kubankin , M. Kuss , M. La Commara , M. Lai , X. Li , M. Lisanti , M. Lissia , B. Loer , G. Longo , Y. Ma , A. A. Machado , I. N. Machulin , A. Mandarano , L. Mapelli , S. M. Mari , J. Maricic , C. J. Martoff , A. Messina , P. D. Meyers , R. Milincic , S. Mishra-Sharma , A. Monte , M. Morrocchi , B. J. Mount , V. N. Muratova , P. Musico , R. Nania , A. Navrer Agasson , A. O. Nozdrina , A. Oleinik , M. Orsini , F. Ortica , L. Pagani , M. Pallavicini , L. Pandola , E. Pantic , E. Paoloni , F. Pazzona , K. Pelczar , N. Pelliccia , V. Pesudo , A. Pocar , S. Pordes , S. S. Poudel , D. A. Pugachev , H. Qian , F. Ragusa , M. Razeti , A. Razeto , B. Reinhold , A. L. Renshaw , M. Rescigno , Q. Riffard , A. Romani , B. Rossi , N. Rossi , D. Sablone , O. Samoylov , W. Sands , S. Sanfilippo , M. Sant , R. Santorelli , C. Savarese , E. Scapparone , B. Schlitzer , E. Segreto , D. A. Semenov , A. Shchagin , A. Sheshukov , P. N. Singh , M. D. Skorokhvatov , O. Smirnov , A. Sotnikov , C. Stanford , S. Stracka , G. B. Suffritti , Y. Suvorov , R. Tartaglia , G. Testera , A. Tonazzo , P. Trinchese , E. V. Unzhakov , M. Verducci , A. Vishneva , B. Vogelaar , M. Wada , T. J. Waldrop , H. Wang , Y. Wang , A. W. Watson , S. Westerdale , M. M. Wojcik , M. Wojcik , X. Xiang , X. Xiao , C. Yang , Z. Ye , C. Zhu , A. Zichichi , G. Zuzel

We report an extensive high-sensitivity search for axion dark matter above 1\,GHz at the Center for Axion and Precision Physics Research (CAPP). The cavity resonant search, exploiting the coupling between axions and photons, explored the…

An experiment is described to detect dark matter axions trapped in the halo of our galaxy. Galactic axions are converted into microwave photons via the Primakoff effect in a static background field provided by a superconducting magnet. The…

We report the results of an experimental search for ultralight axion-like dark matter in the mass range 162 neV to 166 neV. The detection scheme of our Cosmic Axion Spin Precession Experiment (CASPEr) is based on a precision measurement of…