21 states populated in Te 135 from Be 9 -induced reactions with a Sn 132 beam

J. M. Allmond, A. E. Stuchbery, B. A. Brown, J. R. Beene, A. Galindo-Uribarri, C. J. Gross, J. F. Liang, E. Padilla-Rodal, D. C. Radford, R. L. Varner, A. Ayres, J. C. Batchelder, A. Bey, C. R. Bingham, M. E. Howard, K. L. Jones, B. Manning, P. E. Mueller, C. D. Nesaraja, S. D. PainW. A. Peters, A. Ratkiewicz, K. T. Schmitt, D. Shapira, M. S. Smith, N. J. Stone, D. W. Stracener, C. H. Yu

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Abstract

γ-ray transitions in 134Te, 135Te, and 136Te were measured from 9Be-induced reactions with a radioactive 132Sn beam at a sub-Coulomb barrier energy of 3 MeV per nucleon using particle-γ coincidence spectroscopy. The transitions were selected by gating on alpha-like particles in a CsI detector following a combination of (9Be,1n), (9Be,2n), and (9Be,3n) incomplete fusion-evaporation reactions. Distorted-wave Born approximation calculations suggest little to no contribution from the (9Be,7He), (9Be,6He), and (9Be,5He) direct reactions.γ-ray transitions from previously known 2+ - 2f7/2 and 4+ - 2f7/2 multiplet members in 135Te are observed. A new γ ray is observed, assigned to the third-excited state in 135Te, and new 2+ - 2f7/2 multiplet members are suggested. In addition, spin assignments are made by using recent one-neutron transfer data. The updated experimental data for 135Te are compared to shell-model calculations for a relatively complete set of states up to the yrast 15/2,4+ - 2f7/2 multiplet member at 1505 keV.

Original languageEnglish
Article number014322
JournalPhysical Review C - Nuclear Physics
Volume90
Issue number1
DOIs
StatePublished - Jul 29 2014

Funding

FundersFunder number
Australian Research Council
National Science FoundationPHY-1068217
U.S. Department of EnergyDE-AC05-76OR00033, DE-FG52-08NA28552, DE-FG02-96ER40963
National Science Foundation1068217
Australian Research CouncilDP0773273

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