HIGH-SPIN YRAST LEVELS OF AR-38

被引：11

作者：

AARTS, HJM

ENGELBERTINK, GAP

EGGENHUISEN, HH

EKSTROM, LP

机构：

[1] Fysisch Laboratorium, Rijksuniversiteit, Utrecht

来源：

NUCLEAR PHYSICS A | 1979年 / 321卷 / 02期

关键词：

Nuclear reactions;

D O I：

10.1016/0375-9474(79)90142-8

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：

High-spin states of 38Ar have been studied with the 35Cl(α, pγ)38Ar reaction at Eα = 18 MeV and with the 24Mg(16O, 2pγ)38Ar reaction at E(16O) = 38 and 45 MeV. The 38Ar level scheme is obtained with the former reaction from a proton-γ coincidence measurement. Gamma-gamma coincidence, γ-ray angular distribution and linear polarization experiments have been performed with a Ge(Li)-Na(Tl) Compton suppression spectrometer and a three-crystal Ge(Li) Compton polarimeter. Unambiguous spin-parity assignments of Jπ = 7-, 7+, 8 +, 7-, 9- and 11-to the 38Ar levels at Ex = 7.51, 8.08, 8.57, 8.97, 10.17 and 11.61 MeV, respectively, are obtained. The 8.57 MeV, 8+ level has a mean life below 0.8 ps. Excitation energies, branching ratios, multipole mixing ratios and transition strengths are reported. The experimental results are compared with shell-model calculations. © 1979.

引用

页码：515 / 532

页数：18

共 23 条

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