Coulomb excitation measurements of transition strengths in the isotopes 132, 134Sn

R. L. Varner, J. R. Beene, C. Baktash, A. Galindo-Uribarri, C. J. Gross, J. Gomez Del Campo, M. L. Halbert, P. A. Hausladen, Y. Larochelle, J. F. Liang, J. Mas, P. E. Mueller, E. Padilla-Rodal, D. C. Radford, D. Shapira, D. W. Stracener, J. P. Urrego-Blanco, C. H. Yu

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Abstract

We describe an experiment optimized to determine the transition probabilities for excitation of the first excited 2+ state in 132Sn. The large excitation energy (4.04MeV) and consequent small excitation cross-section, together with the modest beam intensity available makes this a challenging experiment. The preliminary result is B(E2;0 + → 2+) = 0.11±0.03e 2 b 2. The high efficiency and generalized nature of the setup enabled us to also measure the first 2+ state in the two-neutron nucleus 134Sn. We have determined a value of B(E2;0+ → 2 +) = 0.029±0.005e 2 b 2 which shows no sign of the asymmetry with respect to the N = 82 shell closure exhibited by the Te isotopes.

Original languageEnglish
Pages (from-to)391-394
Number of pages4
JournalEuropean Physical Journal A
Volume25
Issue numberSUPPL. 1
DOIs
StatePublished - 1 Sep 2005
Externally publishedYes

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