Advertisement

Zeitschrift für Physik A Atoms and Nuclei

, Volume 309, Issue 2, pp 163–176 | Cite as

Spectroscopy of highly excited states in29Si

  • P. Betz
  • E. Bitterwolf
  • A. Burkard
  • F. Glatz
  • F. Heidinger
  • Th. Kern
  • R. Lehmann
  • S. Norbert
  • H. Röpke
  • C. Schneider
  • J. Siefert
Nuclei

Abstract

Particleγ-ray coincidences have been measured in the28Si (d,pγ) reaction at 6.5 and 7 MeV bombarding energy, in the26Mg (α,nγ) reaction at 12, 14 and 15 MeV, and in the27A1 (τ,pγ) reaction at 9 MeV. Theγ-decay has been observed for all bound states of29Si and for 56 unbound states up to 12,960 KeV excitation energy. Particleγ-ray angular correlations were measured in the28Si (d,pγ) reaction at 6.5 MeV and in the26Mg (α,nγ) reaction at 12 MeV. Spin (-parity) assignments or restrictions were obtained for nearly all bound states and some high-spin states above the binding energy. The assignment of mirror levels in29Si and29P has been extended to 8.2 MeV excitation energy. The excitation energies of 41 positive-parity states are reproduced by shell model calculations. The possible existence of aKπ=5/2+ band with prolate deformation is discussed.

Keywords

Spectroscopy Excited State Binding Energy Elementary Particle Model Calculation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Bromley, D.A., Gove, H.E., Litherland, A.E.: Can. J. Phys.35, 1057 (1957)Google Scholar
  2. 2.
    Pilt, A.A., Spear, R.H., Elliott, R.V., Kuehner, J.A.: Can. J. Phys.49, 1263 (1971)Google Scholar
  3. 3.
    Bardin, T.T., Becker, J.A., Fisher, T.R., Jones, A.D.W.: Phys. Rev. C4, 1625 (1971)Google Scholar
  4. 4.
    Viggars, D.A., Butler, P.A., Carr, P.E., Gadeken, L.L., Green, L.L., James, A.N., Nolan, P.J., Sharpey-Schafer, J.F.: J. Phys. A7, 361 (1974)Google Scholar
  5. 5.
    Viggars, D.A., Butler, P.A., Carr, P.E., Gadeken, L.L., James, A.N., Nolan, P.J., Sharpey-Schafer, J.F.: J. Phys. A6, L 67 (1973)Google Scholar
  6. 6.
    Betz, P., Röpke, H.: Z. Phys.261, 351 (1973)Google Scholar
  7. 7.
    Wildenthal, B.H., Mc Grory, J.B.: Phys. Rev. C7, 714 (1973)Google Scholar
  8. 8.
    Van Eijkern, F.E.H., Timmer, G.A., Meurders, F., Glaudemans, P.W.M.: Z. Phys. A — Atoms and Nuclei287, 337 (1976)Google Scholar
  9. 9.
    Van Eijkern, F.E.H.: Thesis University of UtrechtGoogle Scholar
  10. 10.
    Cole, B.J., Watt, A., Whitehead, R.R.: J. Phys. G1, 213 (1975)Google Scholar
  11. 11.
    Mc Grory, J.B., Wildenthal, B.H.: Annu. Rev. Nucl. Part. Sci30, 383 (1980)Google Scholar
  12. 12.
    Wildenthal, B.H.: Elementary modes of nuclear excitations. Broglia, R., Bohr, A. (eds.), p. 383. Amsterdam: North-Holland Publ. Co. 1977Google Scholar
  13. 13.
    Meyer-Schützmeister, L., Gemmel, D.S., Holland, R.E., Kuchnir, F.T., Ohnuma, H., Puttaswamy, N.G.: Phys. Rev.187, 1210 (1969)Google Scholar
  14. 14.
    Haight, R.C., Proctor, D., Lutz, H.F., Bartolini, W.: Nucl. Phys. A241, 285 (1975)Google Scholar
  15. 15.
    Endt, P.M., van der Leun, C.: Nucl. Phys. A310, 1 (1978)Google Scholar
  16. 16.
    Browne, C.P., Radzyminski, J.T.: Nucl. Phys.19, 164 (1960)Google Scholar
  17. 17.
    El-Bedewi, F., Shalaby, M.: J. Phys. A5, 1624 (1972)Google Scholar
  18. 18.
    Medsker, L.R., Jackson, H.E., Yntema, J.L.: Phys. Rev. C9, 1851 (1974)Google Scholar
  19. 19.
    Litherland, A.E., Ferguson, J.A.: Can. J. Phys.39, 788 (1961)Google Scholar
  20. 20.
    Rose, H.J., Brink, D.M.: Rev. Mod. Phys.39, 306 (1967)Google Scholar
  21. 21.
    Betz, P.: Thesis University of Freiburg (1974)Google Scholar
  22. 22.
    Brain, S.W., Johnston, A., Gillespie, W.A., Lees, E.W., Singhal, R.P.: J. Phys. G3, 681 (1977)Google Scholar
  23. 23.
    Endt, P.M.: At. Data Nucl. Data Tables23, 9 (1978)Google Scholar
  24. 24.
    Röpke, H., Glattes, V., and Hammel, G.: Nucl. Phys. A172, 506 (1971)Google Scholar
  25. 25.
    Gearhart, N.C., Hausmann, H.J., Morgan, J.F., Norton, G.H., Tsoupas, N.: Phys. Rev. C10, 1739 (1974)Google Scholar
  26. 26.
    Belote, T.A., Kashy, E., Risser, J.R.: Phys. Rev.122, 920 (1961)Google Scholar
  27. 27.
    Vieira, D.J., Gough, R.A., Cerny, J.: Phys. Rev. C19, 177 (1979)Google Scholar
  28. 28.
    Röpke, H., Hammel, G., Brendler, W., Betz, P., Glattes, V.: Z. Phys.266, 55 (1974)Google Scholar
  29. 29.
    Ragnarsson, I., Nilsson, S.G.: Nucl. Phys. A158, 155 (1970)Google Scholar
  30. 30.
    Ekström, P., Tillman, J.: Nucl. Phys. A230, 285 (1974)Google Scholar
  31. 31.
    Pelte, D.: Phys. Lett.22, 448 (1966)Google Scholar
  32. 32.
    Bailey, D.C., Carr, P.E., Dureil, J.L., Green, L.L., Greene, M.W., James, A.N., Sharpey-Schafer, J.F., Viggars, D.A.: J. Phys. A5, 596 (1972)Google Scholar
  33. 33.
    Glatz, F., Siefert, J., Betz, P., Bitterwolf, E., Burkard, A., Heidinger, F., Kern, Th., Lehmann, R., Norbert, S., Röpke, H.: Z. Phys. A — Atoms and Nuclei303, 239 (1981)Google Scholar

Copyright information

© Springer-Verlag 1982

Authors and Affiliations

  • P. Betz
    • 1
  • E. Bitterwolf
    • 1
  • A. Burkard
    • 1
  • F. Glatz
    • 1
  • F. Heidinger
    • 1
  • Th. Kern
    • 1
  • R. Lehmann
    • 1
  • S. Norbert
    • 1
  • H. Röpke
    • 1
  • C. Schneider
    • 1
  • J. Siefert
    • 1
  1. 1.Fakultät für Physik der UniversitätFreiburg i.Br.Federal Republic of Germany

Personalised recommendations