质子和反质子的磁矩
The magnetic moments of the proton and the antiproton
摘要:
最近在制备和操纵单个被囚禁质子的运动量子态方面取得了令人兴奋的进展,这使得首次直接探测粒子的自旋态成为可能。基于这一成功,在叠加磁场不均匀性的潘宁阱中以ppm精度测量了质子磁矩$μ_p$。通过应用所谓的双潘宁阱技术,可以将精度提高1000倍。在最近的一篇论文中,我们报道了这种方法的第一次演示与一个单一的被困质子,这是一个重要的一步,第一次直接高精度测量的$μ_p$。质子所需的技术可以直接应用于测量反质子磁矩$μ_{\bar{p}}$。$μ_{\bar{p}}$的精度提高超过三个数量级成为可能,这将提供CPT不变性的最灵敏的测试之一。为了实现这一研究目标,我们目前正在欧洲核子研究中心的反质子减速器上建立重子反重子对称性实验。
英文摘要:
Recent exciting progress in the preparation and manipulation of the motional quantum states of a single trapped proton enabled the first direct detection of the particle's spin state. Based on this success the proton magnetic moment $μ_p$ was measured with ppm precision in a Penning trap with a superimposed magnetic field inhomogeneity. An improvement by an additional factor of 1000 in precision is possible by application of the so-called double Penning trap technique. In a recent paper we reported the first demonstration of this method with a single trapped proton, which is a major step towards the first direct high-precision measurement of $μ_p$. The techniques required for the proton can be directly applied to measure the antiproton magnetic moment $μ_{\bar{p}}$. An improvement in precision of $μ_{\bar{p}}$ by more than three orders of magnitude becomes possible, which will provide one of the most sensitive tests of CPT invariance. To achieve this research goal we are currently setting up the Baryon Antibaryon Symmetry Experiment (BASE) at the antiproton decelerator (AD) of CERN.
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。