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arXiv 1112.0937hep-ph
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核形变对直接暗物质探测的形状因子的影响

Effects of nuclear deformation on the form factor for direct dark matter detection

Ya-Zheng Chen, Jun-Mou Chen, Yan-An Luo, Hong Shen, Xue-Qian Li

摘要:

对于直接暗物质探测,从数据中提取有关基本相互作用的有用信息,关键是要正确确定核形状因子。暗物质粒子与核碰撞的自旋无关截面的形状因子已被许多作者深入研究。在进行分析时,通常假定原子核是球对称的。在这项工作中,我们研究了核从球形到椭圆形的变形对形状因子的影响。我们的结果表明,只要椭圆率不太大,这种效应不会引起任何实质性的影响,特别是在室温下原子核是随机取向的情况下,可以完全忽略。

英文摘要:

For direct dark matter detections, to extract useful information about the fundamental interaction from data, it is crucial to properly determine the nuclear form factor. The form factor for spin-independent cross section of collisions between dark matter particle and nucleus is thoroughly studied by many authors. When the analysis was carried out, the nuclei are always supposed to be spherically symmetric. In this work, we investigate the effects of deformation of nuclei from a spherical shape to an elliptical shape on the form factor. Our results indicate that as long as the ellipticity is not too large, such effects cannot cause any substantial effects, especially as the nuclei are randomly orientated in a room temperature circumstance one can completely neglect them.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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