Parity violation observed in the beta decay of magnetically trapped 82Rb atoms

被引：47

作者：

Crane, SG

Brice, SJ

Goldschmidt, A

Guckert, R

Hime, A

Kitten, JJ

Vieira, DJ

Zhao, X

机构：

[1] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

[2] Utah State Univ, Dept Phys, Logan, UT 84322 USA

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 86卷 / 14期

关键词：

D O I：

10.1103/PhysRevLett.86.2967

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Laser cooling and atomic trapping techniques have been employed to confine polarized Rb-82 atoms (T-1/2 = 75 s) in a magnetic time-orbiting-potential (TOP) trap. We have observed the parity-violating correlation between the emitted positron momentum and the parent nuclear spin as a continuous function of angle and positron energy for this pure Gamow-Teller (GT) transition. These proof-of-principle measurements demonstrate the utility of exploring fundamental symmetries in a TOP trap and the steps required to improve sensitivity in the search for physics beyond the standard model.

引用

页码：2967 / 2970

页数：4

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