标准模型对原子的子部分-每万亿测试
Lothar Maisenbacher1,2, Vitaly Wirthl3, Arthur Matveev3
1Max-Planck-Institut für Quantenoptik, Garching, Germany. lothar.maisenbacher@mpq.mpg.de.
Nature
|February 11, 2026
概括
这项研究精确地测量了原子的转换,产生了一个新的质子电荷半径值. 这一结果解决了差异,并严格测试了量子电动力学和标准模型.
科学领域:
- 基本的物理基础.
- 量子电动力学 量子电动力学
- 原子光谱学是一种原子光谱学.
背景情况:
- 量子电动力学 (QED) 是标准模型 (SM) 的基石,可以准确预测原子能水平.
- 来自原子光谱的质子电荷半径 (rp) 值的差异阻碍了对QED的严格测试.
- 现有的rp原子测量与更精确的原子数据相冲突.
研究的目的:
- 在原子中进行2S-6P转换的高精度测量.
- 为了解决质子电荷半径 (rp) 值的差异.
- 为了实现量子电动力学 (QED) 和标准模型 (SM) 的严格测试.
主要方法:
- 在原子中2S-6P过渡的高精度激光谱.
- 使用先进的光谱技术来实现前所未有的精度.
- 从测量过渡频率中提取质子电荷半径.
主要成果:
- 测量到的2S-6P过渡频率为730,690,248,610.79和48) 千赫.
- 确定了质子电荷半径rp = 0.8406(15) fm,比以前的原子测量更为精确.
- 结果与从离子光谱学中获得的值完全一致.
结论:
- 新的原子测量解决了质子电荷半径的差异.
- 这项工作提供了迄今为止最精确的边界状态QED校正测试.
- 这些发现强烈支持标准模型和高精度水平的QED的有效性.
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