Search for sub-electronvolt solar axions using coherent conversion of axions into photons in magnetic field and gas helium

Details Search for sub-electronvolt solar axions using coherent conversion of axions into photons in magnetic field and gas helium Search for sub-electronvolt solar axions using coherent conversion of axions into photons in magnetic field and gas helium

2002-04-23

arxiv.org/abs/astro-ph/0204388v1

Phys.Lett.B536:18-23,2002

Astronomy and Astrophysics

Astrophysics

12 pages, 6 PostScript figures, accepted for publication in Phys. Lett. B

Scientific paper

10.1016/S0370-2693(02)01822-1

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 container to hold dispersion-matching gas has been developed and a mass region up to m_a=0.27eV was newly explored. From the absence of any evidence, analysis sets a limit on axion-photon coupling constant to be $g_{a\gamma\gamma}<6.8-10.9\times10^{-10}GeV^{-1}$ for the axion mass of 0.05

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