HIGH-SPIN STATES IN THE MIRROR NUCLEI CR-49 AND MN-49

被引：61

作者：

CAMERON, JA

BENTLEY, MA

BRUCE, AM

CUNNINGHAM, RA

GELLETLY, W

PRICE, HG

SIMPSON, J

WARNER, DD

JAMES, AN

机构：

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

[2] SERC,DARESBURY LAB,WARRINGTON WA4 4AD,CHESHIRE,ENGLAND

[3] UNIV LIVERPOOL,OLIVER LODGE LAB,DEPT PHYS,LIVERPOOL L69 3BX,ENGLAND

来源：

PHYSICS LETTERS B | 1990年 / 235卷 / 3-4期

关键词：

D O I：

10.1016/0370-2693(90)91957-D

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The γ spectra of the neutron-deficient nuclei 49Mn and 49Cr have been observed using the reactions 12C(40Ca, p2n)49 Mn and 12C(40Ca,2pn)49Cr at E(Ca)=160 MeV.Radiation from 49Mn and 49Cr was identified by detecting recoil ions in a 0° mass separator. Data from γ-γ, recoil-γ and recoil-γ-γ coincidence spectra and recoil-γ angular correlations allowed the level scheme of 4925Mn24 to be deduced up to 6 MeV (19/2-).The levels of the mirror nucleus 4924Cr25 were observed to over 10 MeV (27/2-). Relative Coulomb energies for the mirror states were found to have a smooth J dependence. The rotation-like level spacing at low spin is interrupted at J=19/2-, and this is interpreted as an alignment effect. © 1990.

引用

页码：239 / 244

页数：6

共 11 条

[1] INTERPRETATION OF BACKBENDING IN TERMS OF THE CROSSING OF THE GROUND-STATE BAND WITH AN ALIGNED 2-QUASI-PARTICLE BAND [J].