STUDY OF CHARGED-PARTICLES EMITTED IN THE BETA-DECAY OF HE-6,HE-8

被引:67
作者
BORGE, MJG
JOHANNSEN, L
JONSON, B
NILSSON, T
NYMAN, G
RIISAGER, K
TENGBLAD, O
ROLANDER, KW
机构
[1] CERN,ISOLDE PPE,CH-1211 GENEVA 23,SWITZERLAND
[2] AARHUS UNIV,INST FYS & ASTRON,DK-8000 AARHUS,DENMARK
[3] CHALMERS UNIV TECHNOL,INST FYS,S-41296 GOTHENBURG,SWEDEN
关键词
HE-6(BETA-)-MEASURED BETA-DELAYED DEUTERON SPECTRUM; BRANCHING RATIO DEDUCED; HE-8(BETA-)-MEASURED BETA-DELAYED TRITON AND ALPHA-SPECTRA; TRITON BRANCHING RATIO DEDUCED; R-MATRIX ANALYSIS; ENERGY LEVEL IN LI-8 DEDUCED; THC-C+P] REACTION; SEPARATION ONLINE; DELTA-E-E TELESCOPE LOW ENERGY LOSS;
D O I
10.1016/0375-9474(93)90039-Z
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
The beta-delayed charged particle spectra from He-6 and He-8 were measured with a telescope consisting of a gas counter and a Si surface barrier detector. Beta-delayed deuterons and tritons are emitted in the two cases with branching ratios of (7.6 +/- 0.6) x 10(-6), E(d) > 350 keV and (8.0 +/- 0.5) x 10(-3), respectively. Both spectra present anomalies that must be due to the special structure of these nuclei (an alpha core surrounded by several neutrons).
引用
收藏
页码:664 / 676
页数:13
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