High spin resonances in 12C plus 12C scattering

被引：19
|
作者：
Chappell, SPG
Rae, WDM
Bremner, CA
Dillon, GK
Watson, DL
Greenhalgh, B
Cowin, RL
Freer, M
Singer, SM
机构：
[1] Univ Oxford, Nucl & Astrophys Lab, Oxford OX1 3RH, England
[2] Univ York, Dept Phys, York YO1 5DD, N Yorkshire, England
[3] Univ Birmingham, Sch Phys & Space Res, Birmingham B15 2TT, W Midlands, England
来源：
PHYSICS LETTERS B | 1998年 / 444卷 / 3-4期
基金：
英国工程与自然科学研究理事会;
关键词：
nuclear reactions; C-12(C-12,6 alpha); E = 31-45 MeV; excitation functions; spins; resonances; angular correlations;
D O I：
10.1016/S0370-2693(98)01415-4
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We report on new experimental data which reveal high spin resonances in C-12 +C-12 scattering. We have measured excitation functions for the C-12 [C-12, C-12(3(1)(-)) + C-12(3(1)(-))] reaction over the centre of mass energy range E-c.m.= 31 to 45 MeV. Resonances have been observed at E-c.m.= 32.5, 37.5 and 43 MeV. Detailed angular correlation measurements have been performed at the energy corresponding to the peak of each resonance. From an analysis of the angular correlations we suggest a dominant angular momentum of J = 22 at the highest energy. We interpret the results in terms of an alpha cluster model of superdeformed states in Mg-24. (C) 1998 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：260 / 266
页数：7
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