Lifetimes of intruder states in 186Pb, 188Pb and 194Po

被引：48

作者：

Grahn, T. ^{[1
,2
]}

Dewald, A. ^{[3
]}

Moeller, O. ^{[3
]}

Julin, R. ^{[2
]}

Beausang, C. W. ^{[4
]}

Christen, S. ^{[3
]}

Darby, I. G. ^{[1
]}

Eeckhaudt, S. ^{[2
]}

Greenlees, P. T. ^{[2
]}

Goergen, A. ^{[5
]}

Helariutta, K. ^{[6
]}

Jolie, J. ^{[3
]}

Jones, P. ^{[2
]}

Juutinen, S. ^{[2
]}

Kettunen, H. ^{[2
]}

Kroell, T. ^{[7
]}

Kruecken, R. ^{[7
]}

Le Coz, Y. ^{[5
]}

Leino, M. ^{[2
]}

Leppanen, A. -P. ^{[2
]}

Maierbeck, P. ^{[7
]}

Meyer, D. A. ^{[4
]}

Melon, B. ^{[3
]}

Nieminen, P. ^{[2
]}

Nyman, M. ^{[2
]}

Page, R. D. ^{[1
]}

Pakarinen, J. ^{[1
,2
]}

Petkov, P. ^{[8
]}

Rahkila, P. ^{[2
]}

Saha, B. ^{[3
]}

Sandzelius, M. ^{[2
]}

Saren, J. ^{[2
]}

Scholey, C. ^{[2
]}

Uusitalo, J. ^{[2
]}

Bender, M. ^{[9
]}

Heenen, P. -H. ^{[10
]}

机构：

[1] Univ Liverpool, Dept Phys, Oliver Lodge Lab, Liverpool L69 7ZE, Merseyside, England

[2] Univ Jyvaskyla, Dept Phys, FI-40014 Jyvaskyla, Finland

[3] Univ Cologne, Inst Kernphys, D-50937 Cologne, Germany

[4] Yale Univ, Wright Nucl Struct Lab, New Haven, CT 06520 USA

[5] CEA Saclay, DSM, DAPNIA, SPhN, F-91191 Gif Sur Yvette, France

[6] Univ Helsinki, Lab Radiochem, FI-00014 Helsinki, Finland

[7] Tech Univ Munich, Dept Phys, E12, D-85748 Garching, Germany

[8] Inst Nucl Energy Res, Sofia, Bulgaria

[9] Univ Bordeaux 1, CNRS, IN2P3, Ctr Etudes Nucl Bordeaux Gradignan,UMR5797, F-33175 Gradignan, France

[10] Univ Libre Bruxelles, Serv Phys Nucl Theor, B-1050 Brussels, Belgium

来源：

NUCLEAR PHYSICS A | 2008年 / 801卷 / 3-4期

基金：

英国科学技术设施理事会;

关键词：

NUCLEAR REACTIONS Pd-106; Pd-108; Cd-114(Kr-83; 3n); E=340-375; MeV; measured E-gamma; gamma; gamma gamma-coin; and lifetimes for intruder states using the recoil distance Doppler-shift method; Pb-186; Pb-188; Po-194; deduced B(E2); quadrupole moment; and deformation parameters;

D O I：

10.1016/j.nuclphysa.2008.01.002

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：

Lifetimes of prolate intruder states in Pb-186 and Pb-188 and oblate intruder states in Po-194 have been determined through recoil distance Doppler-shift lifetime measurements. Deformation parameters Of vertical bar beta(2)vertical bar = 0.29(5) and vertical bar beta(2)vertical bar = 0.17(3) have been extracted from experimental B(E2) values for the prolate and the oblate bands, respectively. The present study addresses the phenomenon of shape coexistence typical for the nuclei near Z = 82 and N = 104, providing information on configuration mixing of intrinsic structures of the nuclei of interest. The results are compared with the available lifetime data and theoretical results for neutron-deficient Po, Pb, Hg and Pt nuclei. Furthermore, new self-consistent mean-field calculations have been carried out for Po-194. (c) 2008 Elsevier B.V. All rights reserved.

引用

页码：83 / 100

页数：18

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