Sub-Barrier Coulomb Excitation of {sup 110}Sn and Its Implications for the {sup 100}Sn Shell Closure
- PH Department, CERN 1211, Geneva 23 (Switzerland)
- Physics Department, University of Lund (Sweden)
- Oliver Lodge Laboratory, University of Liverpool (United Kingdom)
- Physics Department and Center of Mathematics for Applications, University of Oslo (Norway)
- TRIUMF, Vancouver (Canada)
- Gesellschaft fuer Schwerionenforschung (GSI), Darmstadt (Germany)
- Department of Physics and Astronomy, University of Edingburgh (United Kingdom)
- Saha Institute of Nuclear Physics, Kolkata 700064 (India)
- Institute of Nuclear Physics, University of Cologne (Germany)
- IPN Orsay, Orsay (France)
- Physics Department, Ludwig-Maximilian University, Munich (Germany)
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.
- OSTI ID:
- 20951273
- Journal Information:
- Physical Review Letters, Vol. 98, Issue 17; Other Information: DOI: 10.1103/PhysRevLett.98.172501; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
- Country of Publication:
- United States
- Language:
- English
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