Evidence for reduced collectivity around the neutron mid-shell in the stable even-mass Sn isotopes from new lifetime measurements
(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.
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- author
- organization
- publishing date
- 2011
- 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
- 2016-04-01 13:16:41
- date last changed
- 2022-01-27 18:18:46
@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}}, keywords = {{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}}, doi = {{10.1016/j.physletb.2010.11.012}}, volume = {{695}}, year = {{2011}}, }