Advanced

Evidence for reduced collectivity around the neutron mid-shell in the stable even-mass Sn isotopes from new lifetime measurements

Jungclaus, A.; Walker, J.; Leske, J.; Speidel, K. -H.; Stuchbery, A. E.; East, M.; Boutachkov, P.; Cederkäll, Joakim LU ; Doornenbal, P. and Egido, J. L., et al. (2011) In Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics 695(1-4). p.110-114
Abstract
Precise measurements of the lifetimes of the first excited 2(+) states in the stable even-A Sn isotopes Sn112-124 have been performed using the Doppler shift attenuation technique. For the isotopes Sn-112, Sn-114 and Sn-116 the E2 transition strengths deduced from the measured lifetimes are in disagreement with the previously reported values and indicate a shallow minimum at N = 66. The observed deviation from a maximum at mid-shell is attributed to the obstructive effect of the S-1/2 neutron orbital in generating collectivity when near the Fermi level. (C) 2010 Elsevier B.V. All rights reserved.
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
keywords
Lifetimes, Sn isotopes, Doppler shift attenuation technique
in
Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics
volume
695
issue
1-4
pages
110 - 114
publisher
Elsevier
external identifiers
  • wos:000286708700020
  • scopus:78650306399
ISSN
0370-2693
DOI
10.1016/j.physletb.2010.11.012
language
English
LU publication?
yes
id
d60b5119-20a8-4d7a-94db-6355fb50d8bd (old id 1964840)
date added to LUP
2011-05-23 13:24:39
date last changed
2017-06-11 04:02:20
@article{d60b5119-20a8-4d7a-94db-6355fb50d8bd,
  abstract     = {Precise measurements of the lifetimes of the first excited 2(+) states in the stable even-A Sn isotopes Sn112-124 have been performed using the Doppler shift attenuation technique. For the isotopes Sn-112, Sn-114 and Sn-116 the E2 transition strengths deduced from the measured lifetimes are in disagreement with the previously reported values and indicate a shallow minimum at N = 66. The observed deviation from a maximum at mid-shell is attributed to the obstructive effect of the S-1/2 neutron orbital in generating collectivity when near the Fermi level. (C) 2010 Elsevier B.V. All rights reserved.},
  author       = {Jungclaus, A. and Walker, J. and Leske, J. and Speidel, K. -H. and Stuchbery, A. E. and East, M. and Boutachkov, P. and Cederkäll, Joakim and Doornenbal, P. and Egido, J. L. and Ekström, Andreas and Gerl, J. and Gernhaeuser, R. and Goel, N. and Gorska, M. and Kojouharov, I. and Maier-Komor, P. and Modamio, V. and Naqvi, F. and Pietralla, N. and Pietri, S. and Prokopowicz, W. and Schaffner, H. and Schwengner, R. and Wollersheim, H. -J.},
  issn         = {0370-2693},
  keyword      = {Lifetimes,Sn isotopes,Doppler shift attenuation technique},
  language     = {eng},
  number       = {1-4},
  pages        = {110--114},
  publisher    = {Elsevier},
  series       = {Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics},
  title        = {Evidence for reduced collectivity around the neutron mid-shell in the stable even-mass Sn isotopes from new lifetime measurements},
  url          = {http://dx.doi.org/10.1016/j.physletb.2010.11.012},
  volume       = {695},
  year         = {2011},
}