Advanced

Enhanced Quadrupole and Octupole Strength in Doubly Magic Sn 132

, ; , ; Rosiak, D.; Seidlitz, M.; Reiter, P.; Naïdja, H.; Tsunoda, Y.; Togashi, T.; Nowacki, F. and Otsuka, T., et al. (2018) In Physical Review Letters 121(25).
Abstract

The first 2+ and 3- states of the doubly magic nucleus Sn132 are populated via safe Coulomb excitation employing the recently commissioned HIE-ISOLDE accelerator at CERN in conjunction with the highly efficient MINIBALL array. The Sn132 ions are accelerated to an energy of 5.49 MeV/nucleon and impinged on a Pb206 target. Deexciting γ rays from the low-lying excited states of the target and the projectile are recorded in coincidence with scattered particles. The reduced transition strengths are determined for the transitions 0g.s.+→21+, 0g.s.+→31-, and 21+→31- in Sn132. The results on these states provide crucial information on cross-shell configurations which are determined within large-scale shell-model and Monte Carlo shell-model... (More)

The first 2+ and 3- states of the doubly magic nucleus Sn132 are populated via safe Coulomb excitation employing the recently commissioned HIE-ISOLDE accelerator at CERN in conjunction with the highly efficient MINIBALL array. The Sn132 ions are accelerated to an energy of 5.49 MeV/nucleon and impinged on a Pb206 target. Deexciting γ rays from the low-lying excited states of the target and the projectile are recorded in coincidence with scattered particles. The reduced transition strengths are determined for the transitions 0g.s.+→21+, 0g.s.+→31-, and 21+→31- in Sn132. The results on these states provide crucial information on cross-shell configurations which are determined within large-scale shell-model and Monte Carlo shell-model calculations as well as from random-phase approximation and relativistic random-phase approximation. The locally enhanced B(E2;0g.s.+→21+) strength is consistent with the microscopic description of the structure of the respective states within all theoretical approaches. The presented results of experiment and theory can be considered to be the first direct verification of the sphericity and double magicity of Sn132.

(Less)
Please use this url to cite or link to this publication:
author
, et al. (More)
(Less)
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review Letters
volume
121
issue
25
publisher
American Physical Society
external identifiers
  • scopus:85059062093
ISSN
0031-9007
DOI
10.1103/PhysRevLett.121.252501
language
English
LU publication?
yes
id
e6a2309c-41b5-4776-89b1-d1a1518d49e6
date added to LUP
2019-01-01 01:12:32
date last changed
2019-06-11 03:59:04
@article{e6a2309c-41b5-4776-89b1-d1a1518d49e6,
  abstract     = {<p>The first 2+ and 3- states of the doubly magic nucleus Sn132 are populated via safe Coulomb excitation employing the recently commissioned HIE-ISOLDE accelerator at CERN in conjunction with the highly efficient MINIBALL array. The Sn132 ions are accelerated to an energy of 5.49 MeV/nucleon and impinged on a Pb206 target. Deexciting γ rays from the low-lying excited states of the target and the projectile are recorded in coincidence with scattered particles. The reduced transition strengths are determined for the transitions 0g.s.+→21+, 0g.s.+→31-, and 21+→31- in Sn132. The results on these states provide crucial information on cross-shell configurations which are determined within large-scale shell-model and Monte Carlo shell-model calculations as well as from random-phase approximation and relativistic random-phase approximation. The locally enhanced B(E2;0g.s.+→21+) strength is consistent with the microscopic description of the structure of the respective states within all theoretical approaches. The presented results of experiment and theory can be considered to be the first direct verification of the sphericity and double magicity of Sn132.</p>},
  articleno    = {252501},
  author       = {,  and ,  and Rosiak, D. and Seidlitz, M. and Reiter, P. and Naïdja, H. and Tsunoda, Y. and Togashi, T. and Nowacki, F. and Otsuka, T. and Colò, G. and Arnswald, K. and Berry, T. and Blazhev, A. and Borge, M. J.G. and Cederkäll, J. and Cox, D. M. and De Witte, H. and Gaffney, L. P. and Henrich, C. and Hirsch, R. and Huyse, M. and Illana, A. and Johnston, K. and Kaya, L. and Kröll, Th and Benito, M. L.Lozano and Ojala, J. and Pakarinen, J. and Queiser, M. and Rainovski, G. and Rodriguez, J. A. and Siebeck, B. and Siesling, E. and Snäll, J. and Van Duppen, P. and Vogt, A. and Von Schmid, M. and Warr, N. and Wenander, F. and Zell, K. O.},
  issn         = {0031-9007},
  language     = {eng},
  month        = {12},
  number       = {25},
  publisher    = {American Physical Society},
  series       = {Physical Review Letters},
  title        = {Enhanced Quadrupole and Octupole Strength in Doubly Magic Sn 132},
  url          = {http://dx.doi.org/10.1103/PhysRevLett.121.252501},
  volume       = {121},
  year         = {2018},
}