PRECISION-MEASUREMENT OF THE ISOTOPE SHIFT OF THE 1S-2S TRANSITION OF ATOMIC-HYDROGEN AND DEUTERIUM

被引：58

作者：

SCHMIDT-KALER, F

LEIBFRIED, D

WEITZ, M

HANSCH, TW

机构：

[1] Max-Planck-Institut für Quantenoptik

来源：

PHYSICAL REVIEW LETTERS | 1993年 / 70卷 / 15期

关键词：

D O I：

10.1103/PhysRevLett.70.2261

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Using the extreme resolution of a cold hydrogen beam spectrometer and a novel sideband technique, the isotope shift of the 1S-2S transition of hydrogen and deuterium has been directly measured to an accuracy of 3.7 x 10(-8). Our experimental result of 670994 337(22) kHz is compared with the theoretical prediction of 670994414(22) kHz that can be calculated, if we assume the value of 1.9627(38) fm for the structure radius of the deuteron and 0.0189(4) fm2 for the neutron-electron correction. The 2.5sigma difference between the predicted and the measured values may be interpreted in terms of polarizability of the deuterium nucleus.

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页码：2261 / 2264

页数：4

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