Effective electric field: Quantifying the sensitivity of searches for new P,T -odd physics with EuCl3·6H2O
Effective electric field: Quantifying the sensitivity of searches for new P,T -odd physics with EuCl3·6H2O
复制标题
有效电场：用 EuCl3·6H2O 量化寻找新 P、T 奇物理现象的灵敏度
DOI：
10.1103/physreva.107.062823
复制
发表时间：
2023
影响因子：
2.9
通讯作者：
Yaresko, A.
中科院分区：
文献类型：
--
作者：
Sushkov, A. O.;Sushkov, O. P.;Yaresko, A.
实验室规模的精密实验是寻找标准模型之外的物理现象的一种有前途的方法。非中心对称固体为寻找新场的努力提供了有利的统计敏感性，这些新场的相互作用违反了离散宇称和时间反转对称性。一个例子是宇宙轴子自旋进动实验 (CASPEr)，它对量子色动力学 (QCD) 轴子暗物质与原子核中胶子的定义相互作用非常敏感。有效电场是量化此类实验对新物理的敏感性的参数。我们描述了计算离子绝缘固体中非中心对称位点的有效电场的理论方法。我们考虑晶体的具体例子，它是一种特别有前途的材料。该晶体中同位素有效电场的乐观估计是。计算不确定性估计为两个数量级，主要由铕核席夫矩的评估决定。
Laboratory-scale precision experiments are a promising approach to searching for physics beyond the standard model. Noncentrosymmetric solids offer favorable statistical sensitivity for efforts that search for new fields, whose interactions violate the discrete parity and time-reversal symmetries. One example is the cosmic axion spin precession experiment (CASPEr), which can be sensitive to the defining interaction of the quantum chromodynamics (QCD) axion dark matter with gluons in atomic nuclei. The effective electric field is the parameter that quantifies the sensitivity of such experiments to new physics. We describe the theoretical approach to calculating the effective electric field for noncentrosymmetric sites in ionic insulating solids. We consider the specific example of thecrystal, which is a particularly promising material. The optimistic estimate of the effective electric field for theisotope in this crystal is. The calculation uncertainty is estimated to be two orders of magnitude, dominated by the evaluation of the europium nuclear Schiff moment.