Measurement of the 7p P-2(3/2) level lifetime in atomic francium

被引：35

作者：

Zhao, WZ ^{[1
]}

Simsarian, JE ^{[1
]}

Orozco, LA ^{[1
]}

Shi, W ^{[1
]}

Sprouse, GD ^{[1
]}

机构：

[1] FUDAN UNIV,SHANGHAI 200433,PEOPLES R CHINA

来源：

PHYSICAL REVIEW LETTERS | 1997年 / 78卷 / 22期

关键词：

D O I：

10.1103/PhysRevLett.78.4169

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present the first measurement of an atomic radiative lifetime in Fr. We use a time-correlated single photon counting technique with a cold sample of Fr-210 atoms in a magneto-optic trap. The results are a precision experimental test of the atomic many-body perturbation theory applied to the heaviest alkali. The lifetime for the 7p(2)P(3/2) level of 21.02(16) ns gives a value for the reduced transition matrix element between the levels 7s(2)S(1/2) --> 7p(2)P(3/2) of 5.898(22)a(infinity) atomic units.

引用

页码：4169 / 4172

页数：4

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