Physics – High Energy Physics – High Energy Physics - Experiment
Scientific paper
1998-06-16
Nucl.Phys.Proc.Suppl. 72 (1999) 171-175
Physics
High Energy Physics
High Energy Physics - Experiment
5 pages, 5 eps files included, uses espcrc2.sty, to be published in Proc. AXION WORKSHOP, Gainesville, Florida, 13-15 March 19
Scientific paper
10.1016/S0920-5632(98)00520-9
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 superconducting magnet with field strength of 4 Tesla over 2.3 meters. From the absence of the axion signal we set a 95 % confidence level upper limit on the axion coupling to two photons $g_{a\gamma\gamma} < 6.0 \times 10^{-10} GeV^{-1}$ for the axion mass $m_a < 0.03$ eV. This is the first solar axion search experiment whose sensitivity to $g_{a\gamma\gamma}$ exceeds the limit inferred from the solar age consideration.
Inoue Yoshizumi
Minowa Makoto
Moriyama Shigetaka
Namba Toshio
Takasu Yuko
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