On the potentiality of the ZnWO4 anisotropic detectors to measure the directionality of Dark Matter
On the potentiality of the ZnWO4 anisotropic detectors to measure the directionality of Dark Matter
复制标题
ZnWO4 各向异性探测器测量暗物质方向性的潜力
DOI：
--
复制
发表时间：
2013
期刊：
影响因子：
--
通讯作者：
V. Tretyak
中科院分区：
文献类型：
--
作者：
F. Cappella;R. Bernabei;P. Belli;V. Caracciolo;R. Cerulli;F. Danevich;A. D'angelo;A. Marco;A. Incicchitti;D. Poda;V. Tretyak
在各向异性闪烁体中，重粒子（p、α、核反冲）的光输出和脉冲形状与晶体轴方向有关；相反，对γ/β辐射的响应是各向同性的。这一特征提供了研究方向性方法的可能性，这适用于那些只引起核反冲的暗物质候选粒子的特殊情况。在各向异性闪烁体中，ZnWO4具有独特的特性，使其成为这类研究的优秀候选者，其性能仍有很大的改进空间。本文讨论了利用各向异性ZnWO4闪烁体进行低背景先锋实验（adamo -各向异性暗物质观测探测器）探索地下深处定向方法的可能性。
In the anisotropic scintillators the light output and the pulse shape for heavy particles (p, α, nuclear recoils) depend on the direction with respect to the crystal axes; the response to γ/β radiation is isotropic instead. This feature offers the possibility to study the directionality approach, which is applicable in the particular case of those Dark Matter candidate particles inducing just nuclear recoils. Among the anisotropic scintillators, the ZnWO4 has unique features, which make it an excellent candidate for this type of research, and there is still plenty of room for the improvement of its performances. In this paper the possibility of a low background pioneer experiment (named ADAMO—Anisotropic detectors for DArk Matter Observation) to exploit deep underground the directionality approach by using anisotropic ZnWO4 scintillators is discussed.