MEASUREMENT OF GAMOW-TELLER AND SPIN DIPOLE STRENGTH IN THE SC-45(N, P)CA-45 REACTION AT 198 MEV

被引：18

作者：

ALFORD, WP ^{[1
]}

CELLER, A ^{[1
]}

BROWN, BA ^{[1
]}

ABEGG, R ^{[1
]}

FERGUSON, K ^{[1
]}

HELMER, R ^{[1
]}

JACKSON, KP ^{[1
]}

LONG, S ^{[1
]}

RAYWOOD, K ^{[1
]}

YEN, S ^{[1
]}

机构：

[1] UNIV WESTERN ONTARIO,LONDON N6A 3K7,ONTARIO,CANADA

来源：

NUCLEAR PHYSICS A | 1991年 / 531卷 / 01期

基金：

美国国家科学基金会;

关键词：

SC-45(N; P)CA-45; E; 198; MEV; MEASURED SIGMA(EP; THETA); DEDUCED GT STRENGTH; SPIN-DIPOLE SIGMA; SHELL MODEL COMPARISON;

D O I：

10.1016/0375-9474(91)90571-M

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 reaction Sc-45(n, p)Ca-45 has been studied at an energy of 198 MeV with energy resolution of about 1 MeV. Measurements were carried out at nominal angles 0-degrees, 3-degrees, 6-degrees, 9-degrees, 12-degrees, 15-degrees, 18-degrees and spectra obtained up to approximately 40 MeV excitation energy in Ca-45. Significant Gamow-Teller strength is observed at an excitation energy of about 7 MeV, somewhat higher than predicted by shell-model calculations. The strength observed is in agreement with calculations using g(A)/g(V) congruent-to 1. The spin-dipole giant resonance is seen with centroid at about 15 MeV excitation and total cross section of 25 mb/sr at an angle of 6-degrees.

引用

页码：97 / 111

页数：15

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