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arXiv 0904.3443hep-phhep-ex
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利用$^{169}$ Tm核共振吸收寻找Primakoff转换产生的太阳轴子

Search for Solar Axions Produced by Primakoff Conversion Using Resonant Absorption by $^{169}$Tm Nuclei

A. V. Derbin, S. V. Bakhlanov, A. I. Egorov, I. A. Mitropolsky, V. N. Muratova, D. A. Semenov, E. V. Unzhakov

备注：
6 pages, 5 figures, submitted to Physics Letters B
发表信息：
Phys.Lett.B678:181-185,2009
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摘要：

研究了$^{169}$ Tm核对Primakoff太阳轴子的共振吸收。这种吸收会导致激发低的核能级：$A+^{169}$ Tm $\to ^{169}$ Tm $^*$ $\to ^{169}$ Tm $ + γ$（8.41 keV）。为此目的，使用Si（Li）检测器和置于低背景设置内的$^{169}$ Tm靶。结果得到了一个新的轴子-光子耦合和轴子质量的限制条件：$g_{Aγ}({GeV}^{-1})\cdot m_A(eV)\leq1.36\cdot10^{-5}$（90% c.l.）。在强子轴子模型中，这个限制对应于轴子质量的上限-- $m_A\leq$ 191 eV（90% c. l）。

英文摘要：

The search for resonant absorption of the Primakoff solar axions by $^{169}$Tm nuclei have been performed. Such an absorption should lead to the excitation of low-lying nuclear energy level: $A+^{169}$Tm $\to ^{169}$Tm$^*$ $\to ^{169}$Tm$ + γ$ (8.41 keV). The Si(Li) detector and $^{169}$Tm target placed inside the low-background setup were used for that purpose. As a result, a new restriction on the axion-photon coupling and axion mass was obtained: $g_{Aγ}({GeV}^{-1})\cdot m_A(eV)\leq1.36\cdot10^{-5}$ (90% c.l.). In model of hadronic axion this restriction corresponds to the upper limit on axion mass - $m_A\leq$ 191 eV for 90% c.l.

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