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A search for solar axions has been performed using an axion helioscope which is equipped with a 2.3m x 4T superconducting magnet, a gas container to hold dispersion-matching gas, PIN-photodiode X-ray detectors, and a telescope mount…

Instrumentation and Methods for Astrophysics · Physics 2010-02-03 Y. Inoue , Y. Akimoto , R. Ohta , T. Mizumoto , A. Yamamoto , M. Minowa

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…

We report on a holoscope axion search experiment near $19.6\ {\rm \mu eV}$ from the TASEH collaboration. The experiment is carried out via a frequency-tunable cavity detector with a volume $V = 0.234\ {\rm liter}$ in a magnetic field $B_0 =…

The CAST (CERN Axion Solar Telescope) experiment at CERN searches for solar axions with energies in the keV range. It is possible that axions are produced in the core of the sun by the interaction of thermal photons with virtual photons of…

High Energy Physics - Experiment · Physics 2007-05-23 Donghwa Kang

Aim of the QUAX (QUaerere AXion) proposal is to exploit the interaction of cosmological axions with the spin of electrons in a magnetized sample. Their effect is equivalent to the application of an oscillating rf field with frequency and…

A preliminary result of the solar axion search experiment at the University of Tokyo is presented. We searched for axions which could be produced in the solar core by exploiting the axion helioscope. The helioscope consists of a…

High Energy Physics - Experiment · Physics 2009-10-31 Makoto Minowa , Shigetaka Moriyama , Yoshizumi Inoue , Toshio Namba , Yuko Takasu , Akira Yamamoto

The latest result from the ORGAN experiment, an axion haloscope is presented. This iteration of the experiment operated at millikelvin temperatures using a flux-driven Josephson parametric amplifier for reduced noise, along with various…

Hypothetical axion-like particles with a two-photon interaction would be produced in the sun by the Primakoff process. In a laboratory magnetic field they would be transformed into X-rays with energies of a few keV. The CAST experiment at…

High Energy Physics - Experiment · Physics 2019-08-14 Berta Beltran

The CAST experiment is being mounted at CERN. It will make use of a decommissioned LHC test magnet to look for solar axions through its conversion into photons inside the magnetic field. The magnet has a field of 9 Tesla and length of 10 m…

Astrophysics · Physics 2012-08-27 CAST collaboration

A search for solar axions has been performed using an axion helioscope which is equipped with a 2.3m-long 4T superconducting magnet, PIN-photodiode X-ray detectors, and a telescope mount mechanism to track the sun. In addition, a gas…

Astrophysics · Physics 2008-11-26 Y. Inoue , T. Namba , S. Moriyama , M. Minowa , Y. Takasu , T. Horiuchi , A. Yamamoto

A high finesse optical cavity can be used to search for cosmic axions in the mass range 10^{-6}< m_a <10^{-4} eV. Either a two-arm or a single-arm cavity is suitable and in either case the signal as resonant sidebands imposed on the…

High Energy Physics - Phenomenology · Physics 2009-06-30 Adrian C. Melissinos

We present the first results of searches for axions and axion-like-particles with the XENON100 experiment. The axion-electron coupling constant, $g_{Ae}$, has been probed by exploiting the axio-electric effect in liquid xenon. A profile…

XMASS, a low-background, large liquid-xenon detector, was used to search for solar axions that would be produced by bremsstrahlung and Compton effects in the Sun. With an exposure of 5.6ton days of liquid xenon, the model-independent limit…

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

We suggest a novel experimental method to search for axion dark matter with an optical ring cavity. Our cavity measures the difference of the resonant frequencies between two circular-polarizations of the laser beam. Its technical design…

Instrumentation and Detectors · Physics 2018-11-30 Ippei Obata , Tomohiro Fujita , Yuta Michimura

Axions are a promising cold dark matter candidate. Haloscopes, which use the conversion of axions to photons in the presence of a magnetic field to detect axions, are the basis of microwave cavity searches such as the Axion Dark Matter…

Cosmology and Nongalactic Astrophysics · Physics 2020-07-01 N. Crisosto , G. Rybka , P. Sikivie , N. S. Sullivan , D. B. Tanner , J. Yang

Axions are well motivated particles that could make up most or all of the dark matter if they have masses below 100 $\mu$eV. Microwave cavity techniques comprised of closed resonant structures immersed in solenoid magnets are sensitive to…

Instrumentation and Detectors · Physics 2015-02-24 Gray Rybka , Andrew Wagner , Aryeh Brill , Kunal Patel , Robert Percival , Katleiah Ramos

Axion Like Particles (ALPs) with a sub-keV range mass are searched by using the light-shining-through-a-wall technique. A novel system is developed in which injected X rays are converted and reconverted by the Laue-case conversion within a…

High Energy Physics - Experiment · Physics 2018-06-26 T. Yamaji , K. Tamasaku , T. Namba , T. Yamazaki , Y. Seino

A traveling wave parametric amplifier has been integrated in the haloscope of the QUAX experiment. A search for dark matter axions has been performed with a high Q dielectric cavity immersed in a 8 T magnetic field and read by a detection…

We have searched for solar axions with a detector which consists of a 4T x 2.3m superconducting magnet, PIN-photodiode X-ray detectors, and an altazimuth mount to track the sun. The conversion region is filled with cold helium gas which…

Astrophysics · Physics 2011-04-11 Y. Inoue , M. Minowa , Y. Akimoto , R. Ota , T. Mizumoto , A. Yamamoto