NUCLEAR-STRUCTURE STUDY OF THE NEUTRON DEFICIENT CADMIUM ISOTOPES CD-100, CD-101, CD-102

被引：40

作者：

ALBER, D ^{[1
]}

BERGER, A ^{[1
]}

BERTSCHAT, HH ^{[1
]}

GRAWE, H ^{[1
]}

HAAS, H ^{[1
]}

KLUGE, H ^{[1
]}

KUHNERT, A ^{[1
]}

MAHNKE, HE ^{[1
]}

MAIER, KH ^{[1
]}

SCHUBART, R ^{[1
]}

SPELLMEYER, B ^{[1
]}

SUN, X ^{[1
]}

WOOD, L ^{[1
]}

机构：

[1] FREE UNIV BERLIN,W-1000 BERLIN 39,GERMANY

来源：

ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI | 1992年 / 344卷 / 01期

关键词：

D O I：

10.1007/BF01291011

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 neutron-deficient nuclei Cd-100, Cd-101 were identified for the first time in - beam following the reactions Ni-58 + Ti-46, Ti-48 and Ni-58 + Cr-50 at 230 MeV and 245 MeV bombarding energy of the Ni-58 beams. The gamma-decay of the isotopes Cd-100, Cd-101, Cd-102 was studied in pgamma, ppgamma, ngamma, nngamma, and ngammagamma prompt and delayed coincidence spectra. Isomers were found with spin and half life I(pi) = 8+, T1/2 = 52(5) ns in 100Cd, I(pi) = (19/2+), T1/2 = 4.6(4) ns in 101Cd and I(pi) = 8+, T1/2 = 56(4) ns in 102Cd. In a PAD experiment the g-factor of the I(pi) = 8+ isomer in 100Cd was measured to be g = 1.24(6). Using the reaction Ar-36 + Ge-70 at 135 MeV energy of the Ar-36 beam, the g-factor and the quadrupole moment of the I(pi) = 8+ isomer in 102Cd were measured to be g = 1.29(3) and Q = 87(10); fm2, respectively. The spectroscopic results are discussed within a shell model approach using a 100Sn core, which accounts well for the electromagnetic properties of the proton aligned isomers. The structure of the spherical neutron states, dominated by the close lying vd5/2, g7/2 orbitals, and the gradually developing quadrupole collectivity are reproduced by the shell model calculations.

引用

页码：1 / 11

页数：11

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