EXCITATION OF THE LOW-ENERGY OCTUPOLE RESONANCE IN ZR-90 BY 0.8-GEV PROTON INELASTIC-SCATTERING

被引：4

作者：

DIGIACOMO, NJ

PETERSON, RJ

机构：

[1] Nuclear Physics Laboratory, University of Colorado, Boulder

来源：

PHYSICAL REVIEW C | 1979年 / 20卷 / 02期

关键词：

D O I：

10.1103/PhysRevC.20.693

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：

Analysis of 0.8 GeV proton inelastic scattering by Zr90 has yielded the angular distribution of a broad peak located at 32 A-13 MeV with a width of approximately 2.2 MeV. The angular distribution, extending from 1.0 to 3.2 fm-1, agrees well with L=3 collective distorted-wave Born approximation calculations. A deformation length R of 0.80 fm is obtained. The isoscalar energy weighted sum rule fraction exhausted by an octupole excitation at 7.2 MeV in Zr90 with this deformation length is 23%. The 3- state at 2.75 MeV in Zr90 is found to exhaust 8% of the isoscalar energy weighted sum rule. These results are in excellent agreement with recent (±,±) work which established the existence of the low-energy octupole resonance. NUCLEAR REACTIONS Zr90(p,p) Ep=0.8 GeV, measured Ex, (); low-energy octupole resonance; determined l,. © 1979 The American Physical Society.

引用

页码：693 / 695

页数：3

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