PHOTO-NEUTRON ANGULAR-DISTRIBUTIONS FROM THE REACTION C-13(GAMMA, NO)C-12

被引：19
|
作者：
WOODWORTH, JG
MCNEILL, KG
JURY, JW
GEORGOPULOS, PD
JOHNSON, RG
机构：
[1] UNIV TORONTO,DEPT PHYS,TORONTO M5S 1A7,ONTARIO,CANADA
[2] TRENT UNIV,DEPT PHYS,PETERBOROUGH K9J 7B8,ONTARIO,CANADA
[3] PENN STATE UNIV,DEPT PHYS,MEDIA,PA 19063
来源：
NUCLEAR PHYSICS A | 1979年 / 327卷 / 01期
基金：
加拿大自然科学与工程研究理事会;
关键词：
Nuclear Reactions;
D O I：
10.1016/0375-9474(79)90317-8
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：
The angular distribution of photoneutrons for the reaction 13C(γ, n0)12C was measured in the region of excitation energy between 7.6 and 24 MeV. The anisotropy coefficients over many of the sharp resonances seen have been interpreted using a simple single-particle description, and information on the spin and parity of these excited 13C states has been found to be in agreement with the known level scheme. New levels at 7.95 MeV and at 12.05 MeV are seen and both are given the tentative Jπ assignment of 3 2+. Comparison is made with results for the similar 12C(p, γ0)13N reaction. The measured angular distribution coefficient, a2/a0, displays general agreement in magnitude with the predictions of a recent calculation but the gross energy-dependent features are in marked disagreement. The observed a3/a0 coefficient between 14 and 18 MeV has the unexpectedly large average value of +0.38±0.05. © 1979.
引用
收藏
页码：53 / 63
页数：11
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