LEVELS OF BA-137 STUDIED WITH NEUTRON-INDUCED REACTIONS

被引：15

作者：

BONDARENKO, VA

KUVAGA, IL

PROKOFJEV, PT

SUKHOVOJ, AM

KHITROV, VA

POPOV, YP

BRANT, S

PAAR, V

机构：

[1] JOINT INST NUCL RES,DUBNA 141980,RUSSIA

[2] UNIV ZAGREB,FAC SCI,DEPT PHYS,ZAGREB 41000,CROATIA

来源：

NUCLEAR PHYSICS A | 1995年 / 582卷 / 1-2期

关键词：

BA-136(N; GAMMA); E; THERMAL; MEASURED E-GAMMA; I-GAMMA; GAMMA-GAMMA-COIN CAPTURE; ISOMER PRODUCTION SIGMA; BA-137 DEDUCED LEVELS; J; PI; GAMMA-BRANCHING RATIOS; COMPARISON WITH CALCULATIONS OF SU(5) LIMIT OF INTERACTING BOSON-FERMION MODEL; ENRICHED TARGET; HYPERPURE GE DETECTORS;

D O I：

10.1016/0375-9474(94)00314-D

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 nucleus Ba-137 has been studied via primary and secondary gamma-rays as well as gamma gamma-coincidences following thermal-neutron capture and inelastic neutron scattering. A level scheme was established up to 4.7 MeV consisting of 37 levels including 91 transitions. The neutron binding energy was determined to be 6905.59(8) keV. The thermal-neutron-capture cross section and isomer production of the 11-/2 state at 661.6 keV were determined to be 0.65(-0.04)(+0.08) and 0.0098(4) b respectively. The experimental data on excitation energies and electromagnetic properties are compared with predictions of the SU(5) limit of the interacting boson-fermion model. A satisfactorily good agreement between experiment and theory can be stated.

引用

页码：1 / 22

页数：22

共 35 条

[1] DECOUPLED AND STRONGLY COUPLED BAND PATTERNS IN PARTICLE-VIBRATION COUPLING MODEL [J].