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We propose a magnetic resonance force microscopy (MRFM) search for axion dark matter around 1 GHz. The experiment leverages the axion's derivative coupling to electrons, which induces an effective A.C. magnetic field on a sample of electron…

High Energy Physics - Phenomenology · Physics 2026-02-02 Elham Kashi , Muhammad Hani Zaheer , Ryan Petery , Swati Singh

Experiments aimed at detecting ultralight dark matter typically rely on resonant effects, which are sensitive to the dark matter mass that matches the resonance frequency. In this study, we investigate the nucleon couplings of ultralight…

High Energy Physics - Phenomenology · Physics 2024-07-12 Zitong Xu , Xiaolin Ma , Kai Wei , Yuxuan He , Xing Heng , Xiaofei Huang , Tengyu Ai , Jian Liao , Wei Ji , Jia Liu , Xiao-Ping Wang , Dmitry Budker

We have searched for axions which could be produced in the solar core by exploiting their conversion to X rays in a strong laboratory magnetic field. The signature of the solar axion is an increase in the rate of the X rays detected in a…

High Energy Physics - Experiment · Physics 2008-11-26 Shigetaka Moriyama , Makoto Minowa , Toshio Namba , Yoshizumi Inoue , Yuko Takasu , Akira Yamamoto

The soft X-ray flux produced by solar axions in the Earth's magnetic field is evaluated in the context of ESA's XMM-Newton observatory. Recent calculations of the scattering of axion-conversion X-rays suggest that the sunward magnetosphere…

High Energy Astrophysical Phenomena · Physics 2014-09-16 G. W. Fraser , A. M. Read , S. Sembay , J. A. Carter , E. Schyns

Axion-like particles can be abundantly produced through scattering processes in the cores of neutron stars (NSs). If they are ultralight ($m_a \lesssim 10^{-4}$ eV), then they can efficiently convert to detectable photons in the external NS…

High Energy Physics - Phenomenology · Physics 2025-12-19 Orion Ning , Kailash Raman , Benjamin R. Safdi

Axions can be copiously produced in localized regions of neutron star magnetospheres where the ambient plasma is unable to efficiently screen the induced electric field. As these axions stream away from the neutron star they can resonantly…

High Energy Physics - Phenomenology · Physics 2023-07-26 Dion Noordhuis , Anirudh Prabhu , Samuel J. Witte , Alexander Y. Chen , Fábio Cruz , Christoph Weniger

Axions and axion-like particles may couple to nuclear spins like a weak oscillating effective magnetic field, the "axion wind." Existing proposals for detecting the axion wind sourced by dark matter exploit analogies to nuclear magnetic…

High Energy Physics - Phenomenology · Physics 2022-11-30 Christina Gao , W. P. Halperin , Yonatan Kahn , Man Nguyen , Jan Schütte-Engel , J. W. Scott

Nanoscale nuclear magnetic resonance (NMR) signals can be measured through hyperfine interaction to paramagnetic electron sensor spins. A heterodyne approach is widely used to overcome the electron spin lifetime limit in spectral…

Nuclear magnetic resonance (NMR) is a powerful tool for applications ranging from chemical analysis to quantum information processing. Achieving optical initialization and detection of molecular nuclear spins promises new opportunities -…

We investigate the potential of IAXO and its intermediate version, BabyIAXO, to detect axions produced in core-collapse supernovae (SNe). Our study demonstrates that these experiments have realistic chances of identifying SN axions,…

High Energy Physics - Phenomenology · Physics 2025-07-30 P. Carenza , J. A. García Pascual , M. Giannotti , I. G. Irastorza , M. Kaltschmidt , A. Lella , A. Lindner , G. Lucente , A. Mirizzi , M. J. Puyuelo , T. Schiffer

Axion stars could form binaries with neutron stars. Given the extremely strong external magnetic field exhibited by individual neutron stars, there can be a substantial conversion of axions to photons in these binaries. The photon emission…

High Energy Astrophysical Phenomena · Physics 2022-02-23 Chris Kouvaris , Tao Liu , Kun-Feng Lyu

Mechanical resonators operating in the high-frequency regime have become a versatile platform for fundamental and applied quantum research. Their exceptional properties, such as low mass and high quality factor, make them also very…

Mesoscale and Nanoscale Physics · Physics 2023-11-29 Diego A. Visani , Letizia Catalini , Christian L. Degen , Alexander Eichler , Javier del Pino

Axions are expected to be produced in the sun via the Primakoff process. They may be detected through the inverse process in the laboratory, under the influence of a strong magnetic field, giving rise to X-rays of energies in the range of a…

High Energy Physics - Experiment · Physics 2009-01-06 Christos Eleftheriadis

The Cosmic Axion Spin Precession Experiment (CASPEr) is a nuclear magnetic resonance experiment (NMR) seeking to detect axion and axion-like particles which could make up the dark matter present in the universe. We review the predicted…

Axion-photon conversion is a prime mechanism to detect axion-like particles that share a coupling to the photon. We point out that in the vicinity of neutron stars with strong magnetic fields, magnetars, the effective photon mass receives…

High Energy Physics - Phenomenology · Physics 2023-10-10 Kyrylo Bondarenko , Alexey Boyarsky , Josef Pradler , Anastasia Sokolenko

Axion and axion-like particles (ALPs), predicted by various extensions of the Standard Model, can be copiously produced in nuclear reactors via the Primakoff process. In this work, we explore the detection of such relativistic ALPs through…

High Energy Physics - Phenomenology · Physics 2026-01-13 Yuanlin Gong , Jun Guo , Ning Liu , Liangliang Su , Wen-Na Yang

We propose a method to reveal axions and axion-like particles based on interferometric measurement of neutron beams. We consider an interferometer in which the neutron beam is split in two sub-beams propagating in regions with differently…

High Energy Physics - Phenomenology · Physics 2022-06-14 Antonio Capolupo , Salvatore Marco Giampaolo , Aniello Quaranta

We investigate solar X-ray observations as a probe of axions and axion-like particles. These particles can be produced in the interior of the Sun via the conversion of thermal photons, as well as through processes involving axion-electron…

Cosmology and Nongalactic Astrophysics · Physics 2026-05-27 Tiziano Zanzarella , Francisco R. Candón , Maurizio Giannotti , Marco Regis , Jaime Ruz , Marco Taoso , Elisa Todarello , Julia K. Vogel

A search of axions produced in nuclear transitions was performed at the Kuo-Sheng Nuclear Power Station with a high-purity germanium detector of mass 1.06 kg at a distance of 28 m from the 2.9 GW reactor core. The expected experimental…

High Energy Physics - Experiment · Physics 2008-11-26 H. M. Chang , TEXONO Collaboration

A finite axion-nucleon coupling, nearly unavoidable for QCD axions, leads to the production of axions via the thermal excitation and subsequent de-excitation of Fe-57 isotopes in the sun. We revise the solar bound on this flux adopting the…