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25 April 2024

» arxiv » 1604.1825

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Search for solar axions with CsI(Tl) crystal detectors
KIMS Collaboration ; Y.S. Yoon ; H.K. Park ; H. Bhang ; J.H. Choi ; S. Choi ; I.S. Hahn ; E.J. Jeon ; H.W. Joo ; W.G. Kang ; B.H. Kim ; G.B. Kim ; H.J. Kim ; K.W. Kim ; S.C. Kim ; S.K. Kim ; Y.D. Kim ; Y.H. Kim ; H.S. Lee ; J.H. Lee ; J.K. Lee ; S.J. Lee ; D.S. Leonard ; J. Li ; S.S. Myung ; S.L. Olsen ; J.H. So ;
Date:	7 Apr 2016
Abstract:	The results of a search for solar axions from the Korea Invisible Mass Search (KIMS) experiment at the Yangyang Underground Laboratory are presented. Low-energy electron-recoil events would be produced by conversion of solar axions into electrons via the axio-electric effect in CsI(Tl) crystals. Using data from an exposure of 34,596 $ m kg cdot days$, we set a 90 \% confidence level upper limit on the axion-electron coupling, $g_{ae}$, of $1.39 imes 10^{-11}$ for an axion mass less than 1 keV/$ m c^2$. This limit is lower than the indirect solar neutrino bound, and fully excludes QCD axions heavier than 0.48 eV/$ m c^2$ and 140.9 eV/$ m c^2$ for the DFSZ and KSVZ models respectively.
Source:	arXiv, 1604.1825
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