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Levels of33S excited by α-capture reactions

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Zeitschrift für Physik A Atoms and Nuclei

Abstract

Highly excited levels of33S populated by α-particle capture in29Si have been investigated forE α=1.962 MeV to 4.287 MeV. Excitation curves measured with Ge(Li) and BF3 detectors are reported. More than fifty resonances can be identified with levels in33S. (α, γ) angular distributions measured on five strong resonances have yieldedJ π values 1/2+, 3/2 +, 5/2−, 5/2−, 5/2− and 3/2+ respectively, for theE x =10.054, 10.466, 10.523, 10.721, 10.758 and 10.776 MeV levels in33S. Elastic scattering experiments have been performed and theJ π assignments are found to be consistent with thel-values inferred from the elastic scattering data. Decay schemes from the above33S levels have been proposed. A new level at 9.245 MeV is also suggested and theJ π values for the 4.425 and 2.87 MeV states are shown to be consistent with 7/2+ and 3/2+ assignment, respectively.

Nuclear Reactions29Si(α, γ) and29Si(α, α),E α=1.962-4.287 MeV. Measured relative σ(E). DeducedJ π andE γ of33S levels. New33S level atE x =9.245 MeV. Enriched targets.

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Author notes

  1. O. B. Okon

    Present address: Dept. of Engineering, University of North Carolina, 28213, Charlotte, North Carolina

  2. P. Sen

    Present address: Physics Dept., Case Western Reserve University, 44106, Cleveland, Ohio

Authors and Affiliations

  1. Physics Department, State University of New York at Albany, New York, USA

    O. B. Okon, H. Bakhru, P. Sen & N. Cue

Authors
  1. O. B. Okon
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  2. H. Bakhru
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  3. P. Sen
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  4. N. Cue
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Additional information

Work supported in part by the USERDA under grant # US AEC-AT(11-1)-2186

The authors wish to thank Mr. Art Haberl and the technical staff of the Accelerator Laboratory for their cooperation. One of us (H.B.) wishes to thank the Research Corporation for the Frederick Gardner Cottrell Grant for support of a Ge(Li) detector system.

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Okon, O.B., Bakhru, H., Sen, P. et al. Levels of33S excited by α-capture reactions. Z Physik A 285, 207–214 (1978). https://doi.org/10.1007/BF01408748

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  • DOI: https://doi.org/10.1007/BF01408748

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