限制CP违反核子-核子长距离相互作用在二原子eEDM搜索中
Chaja Baruch1, P Bryan Changala2, Yuval Shagam3
1Physics Department, <a href="https://ror.org/03qryx823">Technion-Israel Institute of Technology</a>, Haifa 3200003, Israel.
Physical review letters
|September 27, 2024
概括
在像HfF+探针电子电偶极时刻 (eEDM) 这样的分子中寻找CP违规. 一种新的核子-核子力也会影响这些测量结果,从而对这个假设的相互作用产生严格的新界限.
科学领域:
- 原子和分子物理 原子和分子物理
- 粒子物理学 粒子物理学
- 核物理 核物理 核物理
背景情况:
- 在分子 (例如,HfF+,ThO) 中寻找 CP 违规的探测通常探测电子的电偶极时刻 (eEDM).
- 这些搜索还为新的电子-核和电子-电子相互作用提供了灵敏度.
- 核自旋的存在引入了一种新的违反CP的核子-核子远程力,可以影响eEDM测量.
研究的目的:
- 在假设的 CP 违反的核子-核子远程力上推导出新的边界.
- 为eEDM搜索中的实验结果提供新的解释.
- 激励在不同分子物种中独立搜索CP违规.
主要方法:
- 使用来自HfF+ eEDM搜索实验的数据.
- 分析一个不消失的核旋转对CP违规测量的影响.
- 在假设的新物理相互作用上推导严格的边界.
主要成果:
- 一个新的,严格的陆地边界已经推导出了违反CP的核子-核子远程力.
- 这一边界是迄今为止1 eV-10 keV质量范围内的相互作用最严格的边界.
- 这项研究强调了多个来源的新物理,有助于CP违规信号.
结论:
- 在二原子分子中搜索CP违规是对eEDM和核子-核子力都敏感的.
- HfF+实验为假设的核子-核子相互作用提供了强大的约束.
- 在不同的分子系统中进行独立的搜索对于获得新物理学的模型独立界限至关重要.
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