Lifetimes of a shears band in Sm-139

被引：48

作者：

Brandolini, F

IonescuBujor, M

Medina, NH

Ribas, RV

Bazzacco, D

DePoli, M

Pavan, P

Alvarez, CR

deAngelis, G

Lunardi, S

DeAcuna, D

Napoli, DR

Frauendorf, S

机构：

[1] IST NAZL FIS NUCL,SEZ PADOVA,PADUA,ITALY

[2] IST NAZL FIS NUCL,LAB NAZL LEGNARO,I-35020 LEGNANO,ITALY

[3] FORSCHUNGSZENTRUM ROSSENDORF EV,D-01314 DRESDEN,GERMANY

[4] INST PHYS & NUCL ENGN,BUCHAREST,ROMANIA

[5] UNIV SAO PAULO,INST FIS,SAO PAULO,BRAZIL

来源：

PHYSICS LETTERS B | 1996年 / 388卷 / 03期

关键词：

fusion-evaporation; lifetimes; triaxial deformation; total routhian surface calculations; tilted axis cranking model; cranking shell model;

D O I：

10.1016/S0370-2693(96)01202-6

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Lifetimes have been measured in Sm-139 with the DSAM method, using the reaction Ni-62(Br-81,p3n)Sm-139 at 350 MeV. In the negative-parity regular dipole band based on the 25/2(-) state at 3325 keV values of 0.60(21), 0.40(14) and 0.25(8) ps were found for the 337, 409 and 473 keV transitions, respectively. The deduced B(M1) and B(E2) are in agreement with the predictions of the tilted axis cranking model, allowing a triaxial equilibrium shape for the assumed nu h(11/2)x pi h(11/2)(2) configuration.

引用

页码：468 / 474

页数：7

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