Effective field theory analysis of the first LUX dark matter search
Effective field theory analysis of the first LUX dark matter search
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首次 LUX 暗物质搜索的有效场论分析
DOI：
10.1103/physrevd.103.122005
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发表时间：
2021
影响因子：
5
通讯作者：
Akerib D
中科院分区：
文献类型：
--
作者：
Akerib D
大型地下氙暗物质搜索是一个250公斤的活动质量双相时间投影室，通过检测入射到氙目标上的粒子的光和电离信号来运行。于二零一五年十二月，LUX报告最低90%上限C. L。在第一次科学运行中，基于曝光的自旋无关WIMP-核子弹性散射截面。实验之间的紧张关系和缺乏明确的阳性检测表明，在标准的自旋独立/自旋依赖范式之外寻找WIMP是谨慎的。最近的理论工作已经确定了14个独立的有效场理论（EFT）算子来描述WIMP-核子相互作用的完整基础。除了自旋无关和自旋相关的核反应，这些运营商可以产生新的响应，如角动量相关和自旋轨道耦合。在这里，我们报告了对所有14个EFT耦合的搜索与LUX的第一次科学运行的数据。限制被放置在每个耦合作为WIMP质量的函数。
The Large Underground Xenon (LUX) dark matter search was a 250-kg active mass dual-phase time projection chamber that operated by detecting light and ionization signals from particles incident on a xenon target. In December 2015, LUX reported a minimum 90% upper C.L. ofon the spin-independent WIMP-nucleon elastic scattering cross section based on aexposure in its first science run. Tension between experiments and the absence of a definitive positive detection suggest it would be prudent to search for WIMPs outside the standard spin-independent/spin-dependent paradigm. Recent theoretical work has identified a complete basis of 14 independent effective field theory (EFT) operators to describe WIMP-nucleon interactions. In addition to spin-independent and spin-dependent nuclear responses, these operators can produce novel responses such as angular-momentum-dependent and spin-orbit couplings. Here we report on a search for all 14 of these EFT couplings with data from LUX’s first science run. Limits are placed on each coupling as a function of WIMP mass.