DELAYED NEUTRON ALIGNMENT IN I-117

被引：22

作者：

PAUL, ES

WARING, MP

CLARK, RM

FORBES, SA

FOSSAN, DB

HUGHES, JR

LAFOSSE, DR

LIANG, Y

MA, R

VASKA, P

WADSWORTH, R

机构：

[1] BROOKHAVEN NATL LAB, DEPT MED, UPTON, NY 11973 USA

[2] UNIV YORK, DEPT PHYS, YORK YO1 5DD, N YORKSHIRE, ENGLAND

[3] SUNY STONY BROOK, DEPT PHYS, STONY BROOK, NY 11794 USA

来源：

PHYSICAL REVIEW C | 1992年 / 45卷 / 06期

关键词：

D O I：

10.1103/PhysRevC.45.R2531

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 rotational alignment of h11/2 neutrons is considerably delayed (DELTA-HBAR-omega approximately 0.11 MeV) in the pi-h11/2[550]1/2- intruder band in I-117 when compared to bands built on normal-parity states. Comparison with cranked shell-model calculations suggests that this effect may indicate a larger quadrupole deformation for the intruder orbital. A strong neutron-proton interaction between the aligning h11/2 neutrons and the h11/2 proton intruder may also play a role. In addition, noncollective oblate states at I(pi) = 39/2-, 43/2-, and 45/2(-) compete energetically with rotational states of the intruder band which may also perturb the neutron alignment.

引用

页码：R2531 / R2531

页数：1

共 27 条

[1] NUCLEAR SHELL STRUCTURE AT VERY HIGH ANGULAR-MOMENTUM [J].

ANDERSSON, G ;

LARSSON, SE ;

LEANDER, G ;

MOLLER, P ;

NILSSON, SG ;

RAGNARSSON, I ;

ABERG, S ;

BENGTSSON, R ;

DUDEK, J ;

NERLOPOMORSKA, B ;

POMORSKI, K ;

SZYMANSKI, Z .

NUCLEAR PHYSICS A, 1976, 268 (02) :205-256

[2] STUDY OF TA-170,TA-171,TA-173 ISOTOPES AT HIGH SPINS [J].

BACELAR, JC ;

CHAPMAN, R ;

LESLIE, JR ;

LISLE, JC ;

MO, JN ;

PAUL, E ;

SIMCOCK, A ;

WILLMOTT, JC ;

GARRETT, JD ;

HAGEMANN, GB ;

HERSKIND, B ;

HOLM, A ;

WALKER, PM .

NUCLEAR PHYSICS A, 1985, 442 (03) :547-577

[3] CONFIGURATION-DEPENDENT DEFORMATIONS IN RE-171 [J].

BARK, RA ;

DRACOULIS, GD ;

STUCHBERY, AE ;

BYRNE, AP ;

BAXTER, AM ;

RIESS, F ;

WENG, PK .

NUCLEAR PHYSICS A, 1989, 501 (01) :157-187

[4] QUASI-PARTICLE SPECTRA NEAR THE YRAST LINE [J].

BENGTSSON, R ;

FRAUENDORF, S .

NUCLEAR PHYSICS A, 1979, 327 (01) :139-171

[5] ROTATIONAL BANDS AND PARTICLE-HOLE EXCITATIONS AT VERY HIGH-SPIN [J].

BENGTSSON, T ;

RAGNARSSON, I .

NUCLEAR PHYSICS A, 1985, 436 (01) :14-82

[6] HIGH-SPIN STATES OF IR-175 - QUASIPROTON-INDUCED SHAPES AND EXTREME INTERACTION STRENGTH [J].

CEDERWALL, B ;

FANT, B ;

WYSS, R ;

JOHNSON, A ;

NYBERG, J ;

SIMPSON, J ;

BRUCE, AM ;

MO, JN .

PHYSICAL REVIEW C, 1991, 43 (05) :R2031-R2034

[7] TRIAXIAL SHAPES OF ROTATING NUCLEI WITH NEUTRON NUMBER-88, NUMBER-89, NUMBER-90 [J].

FRAUENDORF, S ;

MAY, FR .

PHYSICS LETTERS B, 1983, 125 (04) :245-250

[8] HIGHER ORDER CORRECTIONS TO CRANKING MODEL [J].

HARRIS, SM .

PHYSICAL REVIEW, 1965, 138 (3B) :B509-&

[9] PROPERTIES OF SHAPE-DRIVING ORBITALS - ROTATIONAL BANDS IN LA-131 [J].

HILDINGSSON, L ;

BEAUSANG, CW ;

FOSSAN, DB ;

MA, R ;

PAUL, ES ;

PIEL, WF ;

XU, N .

PHYSICAL REVIEW C, 1989, 39 (02) :471-487

[10] HIGH-SPIN STRUCTURE IN THE ODD-PROTON NUCLEUS PR-133 [J].

HILDINGSSON, L ;

BEAUSANG, CW ;

FOSSAN, DB ;

PIEL, WF .

PHYSICAL REVIEW C, 1988, 37 (03) :985-997

← 1 2 3 →