http://arxiv.org/abs/1707.07921
We report new searches for the solar axions and galactic axion-like dark matter particles, using the first low-background data from the PandaX-II experiment at the China Jinping Underground Laboratory, corresponding to a total exposure of about $2.7\times 10^4$ kg$\cdot$day. No solar axion or galactic axion-like dark matter particle candidate has been identified. The upper limit on the axion-electron coupling ($g_{Ae}$) from the solar flux is found to be about $4.35 \times 10^{-12}$ in the mass range from $10^{-5}$ to 1 keV with 90% confidence level, similar to the recent LUX result. We also report a new best limit from the $^{57}$Fe de-excitation. On the other hand, the upper limit from the galactic axions is on the order of $10^{-13}$ in the mass range from 1 keV to 10 keV with 90% confidence level, slightly improved compared with the LUX.
C. Fu, X. Zhou, X. Chen, et. al.
Wed, 26 Jul 17
65/68
Comments: N/A