测量2/sup 3/P/sub 0/-2/sup 3/P/sub 1/氦精细结构区间

1998 Conference on Precision Electromagnetic Measurements Digest (Cat. No.98CH36254) Pub Date : 1998-07-06 DOI:10.1109/CPEM.1998.700112

F. Minardi, G. Blanchini, S. Busoni, P. Concio, G. Giusfredi, F. Pavone, M. Inguscio

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引用次数: 0

摘要

本文描述了用全光学方法在亚稳He原子束中测量氦2/sup 3/P/sub 0/-/sup 2/ 3p /sub 1/区间的方法。直接的频率测定和系统效应的控制导致3千赫的精度。与精确的原子理论相比，精细结构常数/spl α /的50 ppb精确测定将成为可能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Measurement of the 2/sup 3/P/sub 0/-2/sup 3/P/sub 1/ helium fine structure interval

In this paper we describe a measurement of the helium 2/sup 3/P/sub 0/-/sup 2/3P/sub 1/ interval, obtained from a full optical approach in an atomic beam of metastable He. Direct frequency determination and control of systematic effects leads to an accuracy of 3 kHz. By comparison with a precise atomic theory, a 50 ppb accurate determination of the fine structure constant /spl alpha/ will be possible.

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1998 Conference on Precision Electromagnetic Measurements Digest (Cat. No.98CH36254)

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