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Sub-barrier Coulomb excitation of Sn-110 and its implications for the Sn-100 shell closure

Cederkäll, Joakim LU ; Ekström, Andreas LU ; Fahlander, Claes LU ; Hurst, A. M.; Hjorth-Jensen, M.; Ames, F.; Banu, A.; Butler, P. A.; Davinson, T. and Datta Pramanik, U., et al. (2007) In Physical Review Letters 98(17).
Abstract
The first excited 2(+) state of the unstable isotope Sn-110 has been studied in safe Coulomb excitation at 2.82 MeV/u using the MINIBALL array at the REX-ISOLDE post accelerator at CERN. This is the first measurement of the reduced transition probability of this state using this method for a neutron deficient Sn isotope. The strength of the approach lies in the excellent peak-to-background ratio that is achieved. The extracted reduced transition probability, B(E2 : 0(+) -> 2(+)) 0.220 +/- 0.022e(2) b(2), strengthens the observation of the evolution of the B(E2) values of neutron deficient Sn isotopes that was observed recently in intermediate-energy Coulomb excitation of Sn-108. It implies that the trend of these reduced transition... (More)
The first excited 2(+) state of the unstable isotope Sn-110 has been studied in safe Coulomb excitation at 2.82 MeV/u using the MINIBALL array at the REX-ISOLDE post accelerator at CERN. This is the first measurement of the reduced transition probability of this state using this method for a neutron deficient Sn isotope. The strength of the approach lies in the excellent peak-to-background ratio that is achieved. The extracted reduced transition probability, B(E2 : 0(+) -> 2(+)) 0.220 +/- 0.022e(2) b(2), strengthens the observation of the evolution of the B(E2) values of neutron deficient Sn isotopes that was observed recently in intermediate-energy Coulomb excitation of Sn-108. It implies that the trend of these reduced transition probabilities in the even-even Sn isotopes is not symmetric with respect to the midshell mass number A = 116 as Sn-100 is approached. (Less)
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Physical Review Letters
volume
98
issue
17
publisher
American Physical Society
external identifiers
  • wos:000246803900017
  • scopus:34247581370
ISSN
1079-7114
DOI
10.1103/PhysRevLett.98.172501
language
English
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yes
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70ba0452-57d6-450d-8db7-a7b78338a67a (old id 661862)
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2007-12-05 16:27:22
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@article{70ba0452-57d6-450d-8db7-a7b78338a67a,
  abstract     = {The first excited 2(+) state of the unstable isotope Sn-110 has been studied in safe Coulomb excitation at 2.82 MeV/u using the MINIBALL array at the REX-ISOLDE post accelerator at CERN. This is the first measurement of the reduced transition probability of this state using this method for a neutron deficient Sn isotope. The strength of the approach lies in the excellent peak-to-background ratio that is achieved. The extracted reduced transition probability, B(E2 : 0(+) -> 2(+)) 0.220 +/- 0.022e(2) b(2), strengthens the observation of the evolution of the B(E2) values of neutron deficient Sn isotopes that was observed recently in intermediate-energy Coulomb excitation of Sn-108. It implies that the trend of these reduced transition probabilities in the even-even Sn isotopes is not symmetric with respect to the midshell mass number A = 116 as Sn-100 is approached.},
  author       = {Cederkäll, Joakim and Ekström, Andreas and Fahlander, Claes and Hurst, A. M. and Hjorth-Jensen, M. and Ames, F. and Banu, A. and Butler, P. A. and Davinson, T. and Datta Pramanik, U. and Eberth, J. and Franchoo, S. and Georgiev, G. and Gorska, M. and Habs, D. and Huyse, M. and Ivanov, O. and Iwanicki, J. and Kester, O. and Koester, U. and Marsh, B. A. and Niedermaier, O. and Nilsson, T. and Reiter, P. and Scheit, H. and Schwalm, D. and Sieber, T. and Sletten, G. and Stefanescu, I. and de Walle, J. Van and Van Duppen, P. and Warr, N. and Weisshaar, D. and Wenander, F.},
  issn         = {1079-7114},
  language     = {eng},
  number       = {17},
  publisher    = {American Physical Society},
  series       = {Physical Review Letters},
  title        = {Sub-barrier Coulomb excitation of Sn-110 and its implications for the Sn-100 shell closure},
  url          = {http://dx.doi.org/10.1103/PhysRevLett.98.172501},
  volume       = {98},
  year         = {2007},
}