PROTON BACKBEND IN THE DOUBLY-MAGIC SUPERDEFORMED NUCLEUS GD-144

被引：24

作者：

LUNARDI, S

BAZZACCO, D

ROSSIALVAREZ, C

PAVAN, P

DEANGELIS, G

DEACUNA, D

DEPOLI, M

MARON, G

RICO, J

STUCH, O

WEIL, D

UTZELMANN, S

HOERNES, P

UTZELMANN, S

HOERNES, P

SATULA, W

WYSS, R

机构：

[1] IST NAZL FIS NUCL, PADUA, ITALY

[2] IST NAZL FIS NUCL, LAB NAZL LEGNARO, LEGNANO, ITALY

[3] UNIV COLOGNE, INST KERNPHYS, W-5000 COLOGNE 41, GERMANY

[4] FORSCHUNGSZENTRUM JULICH, INST KERNPHYS, W-5170 JULICH, GERMANY

[5] ROYAL INST TECHNOL, PHYS DEPT FRESCATI, S-10044 STOCKHOLM 70, SWEDEN

[6] UNIV WARSAW, INST THEORET PHYS, PL-00681 WARSAW, POLAND

来源：

PHYSICAL REVIEW LETTERS | 1994年 / 72卷 / 10期

关键词：

D O I：

10.1103/PhysRevLett.72.1427

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A discrete superdeformed rotational band has been discovered in 144Gd following the reaction Mo-100(Ti-48,4n)144Gd at 22, MeV. The dynamical moment of inertia shows a sharp irregularity at HBAR omega=0.45 MeV. The intensity of the gamma-ray transitions suggests that the irregularity can be associated with a backbend, which is interpreted in terms of the N = 6 proton band crossing. The experimental results are in good agreement with cranked mean field calculations, which indicate the presence of large shell gaps for both protons and neutrons.

引用

页码：1427 / 1430

页数：4

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