New measurement of the β-γ directional correlation in 22Na

被引：5
|
作者：
Bowers, CJ [1 ]
Freedman, SJ
Fujikawa, B
Macchiavelli, AO
MacLeod, RW
Reich, J
Shang, SQ
Vetter, PA
Wasserman, E
机构：
[1] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA
[2] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA
来源：
PHYSICAL REVIEW C | 1999年 / 59卷 / 02期
关键词：
D O I：
10.1103/PhysRevC.59.1113
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
We have measured the beta-gamma directional correlation coefficient A(22) in the decay of Na-22 to the 2(+) 1275 keV excited state of Ne-22. We find A(22)= (5.3+/-2.5)X10(-4). This measurement has higher precision but disagrees with most previous experiments. The value for A(22), combined with other experimental inputs, gives recoil-order form factors in disagreement with theoretical estimates. This experiment demonstrates the capabilities of Gammasphere as an instrument for precise beta-gamma correlation measurements. [S0556-2813(99)61702-1].
引用
收藏
页码：1113 / 1118
页数：6
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