3-NUCLEON CHARGE RADIUS - A PRECISE LASER DETERMINATION USING HE-3

被引：97

作者：

SHINER, D ^{[1
]}

DIXSON, R ^{[1
]}

VEDANTHAM, V ^{[1
]}

机构：

[1] YALE UNIV, DEPT PHYS, NEW HAVEN, CT 06511 USA

来源：

PHYSICAL REVIEW LETTERS | 1995年 / 74卷 / 18期

关键词：

D O I：

10.1103/PhysRevLett.74.3553

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The isotope shift of the 23S1-23P0 transition in helium has been measured using laser excitation of an atomic beam, yielding 33 668.074(5) MHz. This value, combined with atomic theory and the 4He nuclear charge radius, gives a 3He radius of 1.9506(14) fm. This result is over an order of magnitude more precise than previous determinations. It agrees with two recent theoretical values 1.958(6) and 1.954(7) fm from realistic nucleon-nucleon potentials and the 3He binding energy. Our result provides both a confirmation and a sensitive test of the nuclear theory of few-nucleon systems. © 1995 The American Physical Society.

引用

页码：3553 / 3556

页数：4

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