Determining Nuclear Form factor for Detection of Dark Matter in Relativistic Mean Field Theory
Determining Nuclear Form factor for Detection of Dark Matter in Relativistic Mean Field Theory
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DOI：
10.1088/0253-6102/55/6/21
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发表时间：
2011-01
影响因子：
3.1
通讯作者：
Ya-Zheng Chen;Yanan Luo;Lei Li;Hong Shen;Xue–qian Li
中科院分区：
文献类型：
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作者：
Ya-Zheng Chen;Yanan Luo;Lei Li;Hong Shen;Xue–qian Li
在这项工作中，我们用相对论平均场(RMF)理论推导了WIMP与原子核之间与自旋无关的碰撞的核形状因子。与文献中常用的传统形状因子进行了比较，发现在0~100keV的整个反冲能谱范围内，我们的结果比2PF模型略高4%~8%，但与Helm形状因子相差15%~25%。此外，以Xe和Ge为例，给出了形状因子与反冲能的关系。
In this work, we derive the nuclear form factor for the spin-independent collision between the WIMPs and nucleus in terms of the relativistic mean field (RMF) theory. Comparison with the traditional form factors which are commonly used in literature is given and it is found that our results are slightly above that of the 2PF model by 4% to 8%, but deviate from the Helm form factor by 15% to 25% for the whole recoil energy spectrum of 0 ~ 100 keV. Moreover, taking Xe and Ge as examples, we show the dependence of the form factor on the recoil energy.