Recent results from the Tokyo axion helioscope experiment

Details Recent results from the Tokyo axion helioscope experiment Recent results from the Tokyo axion helioscope experiment

2000-12-15

arxiv.org/abs/astro-ph/0012338v1

Astronomy and Astrophysics

Astrophysics

6 pages, 4 PostScript figures; submitted to Proceedings of IDM2000 (World Scientific)

Scientific paper

We have searched for axions which could have been produced in the solar core using an axion helioscope with a 2.3m-long 4T superconducting magnet. Axion mass region up to m_a=0.26eV was newly explored by introducing dispersion-matching gas. Preliminary analysis sets a limit on axion-photon coupling constant to be less than (6.4--9.6)e-10 GeV^{-1} (95%CL) for this mass region from the absence of the axion signal. This is more stringent than the limit inferred from the solar age consideration and also more stringent than the recent helioseismological bound.

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