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Zeitschrift für Physik A Hadrons and Nuclei

, Volume 352, Issue 2, pp 149–159 | Cite as

The structure of28Si above 10 MeV excitation energy I: gamma-decay modes and radiative widths of levels

  • J. Brenneisen
  • D. Grathwohl
  • M. Lickert
  • R. Ott
  • H. Röpke
  • J. Schmälzlin
  • P. Siedle
  • B. H. Wildenthal
Nuclear Structure and Reaction

Abstract

The systematics ofγ-decay modes and radiative widths of highly excited states in28Si has been extended by takingγ-ray spectra on 60 resonances of the27Al(p,γ) reaction in the range 1097 keV≤E p ≤ 4492 keV (12643 keV≤E x ≤ 15915 keV) and on the24Mg(α,γ) resonances atE α =3355, 3431, 4003 keV (E x =12860, 12925, 13 415 keV). Theγ-decay modes of levels in the sub-resonance region (E x =10−12.5 MeV) were studied with both the27A1(p, γ) reaction and the27A1(d, nγ) reaction at Ed=4,5,6 MeV. Information on radiative widths of levels was obtained by measuring the resonance strengthsS γ =(2I+1)ΓpΓγ/Γ for 52 resonances of the27Al(p, γ) reaction with an emphasis on prospective T=1 states.

PACS

27.30.+t 21.10.Hw 21.10.Dr 

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Copyright information

© Springer-Verlag 1995

Authors and Affiliations

  • J. Brenneisen
    • 1
  • D. Grathwohl
    • 1
  • M. Lickert
    • 1
  • R. Ott
    • 1
  • H. Röpke
    • 1
  • J. Schmälzlin
    • 1
  • P. Siedle
    • 1
  • B. H. Wildenthal
    • 2
  1. 1.Fakultät für Physik der Universität FreiburgFreiburg i.Br.Germany
  2. 2.Physics Program, School of Natural Sciences and MathematicsThe University of Texas at DallasRichardsonUSA

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