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Title: Sub-Barrier Coulomb Excitation of {sup 110}Sn and Its Implications for the {sup 100}Sn Shell Closure

Abstract

The first excited 2{sup +} state of the unstable isotope {sup 110}Sn 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{sup +}{yields}2{sup +})=0.220{+-}0.022e{sup 2}b{sup 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 {sup 108}Sn. 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 {sup 100}Sn is approached.

Authors:
 [1];  [2]; ;  [3]; ;  [4];  [5];  [6];  [7];  [8];  [9];  [10]; ; ; ;  [11];  [12]; ;  [1]; more »;  [7];  [13] « less
  1. PH Department, CERN 1211, Geneva 23 (Switzerland)
  2. (Sweden)
  3. Physics Department, University of Lund (Sweden)
  4. Oliver Lodge Laboratory, University of Liverpool (United Kingdom)
  5. Physics Department and Center of Mathematics for Applications, University of Oslo (Norway)
  6. TRIUMF, Vancouver (Canada)
  7. Gesellschaft fuer Schwerionenforschung (GSI), Darmstadt (Germany)
  8. (Germany)
  9. Department of Physics and Astronomy, University of Edingburgh (United Kingdom)
  10. Saha Institute of Nuclear Physics, Kolkata 700064 (India)
  11. Institute of Nuclear Physics, University of Cologne (Germany)
  12. IPN Orsay, Orsay (France)
  13. Physics Department, Ludwig-Maximilian University, Munich (Germany) (and others)
Publication Date:
OSTI Identifier:
20951273
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review Letters; Journal Volume: 98; Journal Issue: 17; Other Information: DOI: 10.1103/PhysRevLett.98.172501; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; CERN; COULOMB EXCITATION; NEUTRON-DEFICIENT ISOTOPES; PROBABILITY; SHELL MODELS; TIN 100; TIN 108; TIN 110

Citation Formats

Cederkaell, J., Physics Department, University of Lund, Ekstroem, A., Fahlander, C., Hurst, A. M., Butler, P. A., Hjorth-Jensen, M., Ames, F., Banu, A., Institute for Nuclear Physics, University of Mainz, Davinson, T., Pramanik, U. Datta, Eberth, J., Reiter, P., Warr, N., Weisshaar, D., Franchoo, S., Georgiev, G., Koester, U., Gorska, M., Kester, O., and Habs, D. Sub-Barrier Coulomb Excitation of {sup 110}Sn and Its Implications for the {sup 100}Sn Shell Closure. United States: N. p., 2007. Web. doi:10.1103/PHYSREVLETT.98.172501.
Cederkaell, J., Physics Department, University of Lund, Ekstroem, A., Fahlander, C., Hurst, A. M., Butler, P. A., Hjorth-Jensen, M., Ames, F., Banu, A., Institute for Nuclear Physics, University of Mainz, Davinson, T., Pramanik, U. Datta, Eberth, J., Reiter, P., Warr, N., Weisshaar, D., Franchoo, S., Georgiev, G., Koester, U., Gorska, M., Kester, O., & Habs, D. Sub-Barrier Coulomb Excitation of {sup 110}Sn and Its Implications for the {sup 100}Sn Shell Closure. United States. doi:10.1103/PHYSREVLETT.98.172501.
Cederkaell, J., Physics Department, University of Lund, Ekstroem, A., Fahlander, C., Hurst, A. M., Butler, P. A., Hjorth-Jensen, M., Ames, F., Banu, A., Institute for Nuclear Physics, University of Mainz, Davinson, T., Pramanik, U. Datta, Eberth, J., Reiter, P., Warr, N., Weisshaar, D., Franchoo, S., Georgiev, G., Koester, U., Gorska, M., Kester, O., and Habs, D. Fri . "Sub-Barrier Coulomb Excitation of {sup 110}Sn and Its Implications for the {sup 100}Sn Shell Closure". United States. doi:10.1103/PHYSREVLETT.98.172501.
@article{osti_20951273,
title = {Sub-Barrier Coulomb Excitation of {sup 110}Sn and Its Implications for the {sup 100}Sn Shell Closure},
author = {Cederkaell, J. and Physics Department, University of Lund and Ekstroem, A. and Fahlander, C. and Hurst, A. M. and Butler, P. A. and Hjorth-Jensen, M. and Ames, F. and Banu, A. and Institute for Nuclear Physics, University of Mainz and Davinson, T. and Pramanik, U. Datta and Eberth, J. and Reiter, P. and Warr, N. and Weisshaar, D. and Franchoo, S. and Georgiev, G. and Koester, U. and Gorska, M. and Kester, O. and Habs, D.},
abstractNote = {The first excited 2{sup +} state of the unstable isotope {sup 110}Sn 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{sup +}{yields}2{sup +})=0.220{+-}0.022e{sup 2}b{sup 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 {sup 108}Sn. 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 {sup 100}Sn is approached.},
doi = {10.1103/PHYSREVLETT.98.172501},
journal = {Physical Review Letters},
number = 17,
volume = 98,
place = {United States},
year = {Fri Apr 27 00:00:00 EDT 2007},
month = {Fri Apr 27 00:00:00 EDT 2007}
}