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We describe the results of a haloscope axion search performed with an 11.7 T dipole magnet at CERN. The search used a custom-made radio-frequency cavity coated with high-temperature superconducting tape. A set of 27 h of data at a resonant…

Axions in the micro eV mass range are a plausible cold dark matter candidate and may be detected by their conversion into microwave photons in a resonant cavity immersed in a static magnetic field. The first result from such an axion search…

The cavity haloscope technique has been the most successful approach to date in searching for axion dark matter, owing to a confluence of factors at the GHz scale including the macroscopic size of the axion-to-photon converting cavity…

High Energy Physics - Experiment · Physics 2026-01-30 Erik W. Lentz , Christian R. Boutan , Matthew S. Taubman , Kevin L. Gervais

Haloscopes, microwave resonant cavities utilized in detecting dark matter axions within powerful static magnetic fields, are pivotal in modern astrophysical research. This paper delves into the realm of cylindrical geometries, investigating…

Instrumentation and Detectors · Physics 2023-10-26 J. M. García-Barceló , A. Díaz-Morcillo , B. Gimeno

Electromagnetic fields surrounding pulsars may source coherent ultralight axion signals at the known rotational frequencies of the neutron stars, which can be detected by laboratory experiments (e.g., pulsarscopes). As a promising case…

High Energy Physics - Phenomenology · Physics 2025-03-25 Mariia Khelashvili , Mariangela Lisanti , Anirudh Prabhu , Benjamin R. Safdi

We propose a new broadband search strategy for ultralight axion dark matter that interacts with electromagnetism. An oscillating axion field induces transitions between two quasi-degenerate resonant modes of a superconducting cavity. In two…

High Energy Physics - Phenomenology · Physics 2022-01-05 Asher Berlin , Raffaele Tito D'Agnolo , Sebastian A. R. Ellis , Kevin Zhou

The axion was first introduced as a consequence of the Peccei-Quinn mechanism to solve the CP problem in strong interactions of particle physics and is a well motivated cold dark matter candidate. This particle is expected to interact…

Instrumentation and Detectors · Physics 2020-12-08 S. W. Youn , E. Sala , J. Jeong , J. Kim , Y. K. Semertzidis

In this work we study electromagnetic properties of a resonator recently suggested for the search of axions - a hypothetical candidate to explain dark matter. A wire medium loaded resonator (called a plasma haloscope when used to search for…

High Energy Physics - Phenomenology · Physics 2022-08-18 Rustam Balafendiev , Constantin Simovski , Alexander J. Millar , Pavel Belov

The invisible axion is a hypothetical particle that arises from the Peccei-Quinn mechanism proposed to resolve the CP problem in quantum chromodynamics, and is considered one of the most favoured candidates for cold dark matter. Dish…

High Energy Physics - Phenomenology · Physics 2023-09-06 Junu Jeong , Sungwoo Youn , Yannis K. Semertzidis

Detection mechanisms for low mass bosonic dark matter candidates, such the axion or hidden photon, leverage potential interactions with electromagnetic fields, whereby the dark matter (of unknown mass) on rare occasion converts into a…

High Energy Physics - Experiment · Physics 2021-04-14 Akash V. Dixit , Srivatsan Chakram , Kevin He , Ankur Agrawal , Ravi K. Naik , David I. Schuster , Aaron Chou

Long-standing efforts to detect axions are driven by two compelling prospects, naturally accounting for the absence of charge-conjugation and parity symmetry breaking in quantum chromodynamics, and for the elusive dark matter at ultralight…

High Energy Physics - Phenomenology · Physics 2023-07-19 Georg Engelhardt , Amit Bhoonah , W. Vincent Liu

Light dark matter candidates such as axions and dark photons generically couple to electromagnetism, yielding dark-matter-to-photon conversion as a key search strategy. In addition to resonant conversion in cavities and circuits, light dark…

High Energy Physics - Phenomenology · Physics 2025-06-26 Stewart Koppell , Otavio D. A. R. Bittencourt , Dip Joti Paul , Junwu Huang , Masha Baryakhtar , Karl K. Berggren

A brief review of light dark matter particles and their spectroscopy is presented, specifically aimed at understanding the interaction mechanisms of axion and Axion-Like Particles (ALPs) with matter and an interim proposal and some ideas…

High Energy Physics - Experiment · Physics 2019-04-02 Masroor H. S. Bukhari

The QCD Axion is a particle postulated to exist since the 1970s to explain the Strong-CP problem in particle physics. It could also account for all of the observed Dark Matter in the universe. The Axion Resonant InterAction DetectioN…

Within the increasing interest in the dark matter axion detection through haloscopes, in which different international groups are currently involved, the RADES group was established in 2016 with the goal of developing very sensitive…

We report an extended search for the axion dark matter using the CAPP18T haloscope. The CAPP18T experiment adopts innovative technologies of a high-temperature superconducting magnet and a Josephson parametric converter. The CAPP18T…

High Energy Physics - Experiment · Physics 2023-08-25 Byeongsu Yang , Hojin Yoon , Moohyun Ahn , Youngjae Lee , Jonghee Yoo

Axion-like particles (ALPs) are undiscovered pseudo-scalar particles that are candidates for ultralight dark matter. ALPs interact with photons slightly and cause the rotational oscillation of linearly polarized light. Dark matter Axion…

Instrumentation and Detectors · Physics 2022-03-02 Hiroki Fujimoto , Yuka Oshima , Masaki Ando , Tomohiro Fujita , Yuta Michimura , Koji Nagano , Ippei Obata

It has been suggested that certain antiferromagnetic topological insulators contain axion quasiparticles (AQs), and that such materials could be used to detect axion dark matter (DM). The AQ is a longitudinal antiferromagnetic spin…

Almost 35 years since their suggestion as a good solution to the strong CP-problem, axions remain one of the few viable candidates for the Dark Matter, although still eluding detection. Most of the methods for their detection are based on…

Instrumentation and Detectors · Physics 2019-08-14 T. Dafni , F. J. Iguaz

The focus on dark matter search has expanded to include low-mass particles such as axions or axion-like particles, and novel theoretical schemes extending the phenomenological landscape, within QCD and beyond, also garnered additional…

High Energy Physics - Experiment · Physics 2022-07-20 Zhongyue Zhang , Oindrila Ghosh , Dieter Horns