SHAPE TRANSITION REGION IMPLIED IN THE LIGHT NB ISOTOPES - EXCITED-STATES IN NB-83

被引：18

作者：

GROSS, CJ

GELLETLY, W

BENTLEY, MA

PRICE, HG

SIMPSON, J

VARLEY, BJ

DURELL, JL

SKEPPSTEDT, O

RASTIKERDAR, S

机构：

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

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

[3] CHALMERS UNIV TECHNOL, DEPT PHYS, S-41296 GOTHENBURG, SWEDEN

[4] UNIV ISFAHAN, DEPT PHYS, ESFAHAN, IRAN

来源：

PHYSICAL REVIEW C | 1991年 / 43卷 / 01期

关键词：

D O I：

10.1103/PhysRevC.43.R5

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：

Excited states in the very neutron deficient isotope Nb83 were observed for the first time in the reaction Si-28(Ni-58,2np)Nb83 at 195 MeV. Identification was made with a recoil separator and a cross section of sigma = 180(80) mu-b was estimated. Eight transitions were arranged in a level scheme which resembles the N = 41 isotones Kr77 and Sr79 rather than the heavier, weakly deformed Nb isotopes. This suggests that a shape transition to strong deformation exists in the light Nb isotopes. A ground state spin of 5/2+ is suggested.

引用

页码：R5 / R8

页数：4

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