INVESTIGATION OF SHAPE CHANGES IN MO-87

被引：29

作者：

WINTER, C

BLUMENTHAL, DJ

CHOWDHURY, P

CROWELL, B

ENNIS, PJ

FREEMAN, SJ

LISTER, CJ

GROSS, CJ

HEESE, J

JUNGCLAUS, A

LIEB, KP

RUDOLPH, D

BENTLEY, MA

GELLETLY, W

SIMPSON, J

DURELL, JL

VARLEY, BJ

机构：

[1] UNIV GOTTINGEN,INST PHYS 2,W-3400 GOTTINGEN,GERMANY

[2] SERC,NUCL STRUCT FACIL,WARRINGTON WA4 4AD,ENGLAND

[3] UNIV MANCHESTER,SCHUSTER LAB,DEPT PHYS,MANCHESTER M13 9PL,LANCS,ENGLAND

来源：

NUCLEAR PHYSICS A | 1991年 / 535卷 / 01期

关键词：

N-58(S-32; N2P); E=110; 120; 130; MEV; CA-40(CR-50; E=170; MEASURED E-GAMMA; I-GAMMA(E; THETA); 87MO DEDUCED LEVELS; BRANCHING RATIOS; J; PI; B(E2); T1/2; RECOIL SEPARATOR; NEUTRON DETECTORS; GERMANIUM DETECTOR ARRAY; ENRICHED TARGETS;

D O I：

10.1016/0375-9474(91)90520-G

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 level scheme of 87Mo was investigated with the reaction Ni-58(S-32, 2pn) at projectile energies of 110-130 MeV and the reaction Ca-40(Cr-50, 2pn) at 170 MeV. Extensive spectroscopic information was collected including gamma-gamma and neutron-gated gamma-gamma-coincidences as well as coincidences with identified 87Mo residues. Level lifetimes were studied with the RDDS and DSA methods. The angular distributions of low-lying transitions were measured. The results indicate a sudden transition from single-particle-like to collective behavior which is caused by g9/2 particle alignment. The level scheme was constructed up to 12 MeV excitation energy and a probable spin of 49/2 HBAR.

引用

页码：137 / 160

页数：24

共 49 条

[1] SUPERDEFORMATIONS - A THEORETICAL OVERVIEW [J].