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Structure of28Si from the spectroscopy of high-spin states

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Zeitschrift für Physik A Atoms and Nuclei

Abstract

A search for high-spin states in28Si has been performed byn−y coincidence measurements in the25Mg(α,nγy) reaction atE α=14 and 15.5 MeV. Spin-parity assignments of the observed levels were obtained fromn−γ angular correlation and lifetime measurements atE α=14.5 MeV. Theγ-decay of the 9,164 keV level was investigated separately with the27Al(p, γ) reaction at theE p=2,160 and 2,312 keV resonances. Rotational bands withK π=3− (comprising levels atE x=6,879, 8,413, 10,188 and 12,204 keV),K π =5− (comprising levels atE x=9,702, 11,577 and 13,741 keV) andK π=0+ (comprising levels atE x=6,691, 7,381, 9,164 and 11,509 keV) were observed. The finding of the latter band supports the idea of coexisting oblate and prolate shapes in28Si. A level at 14,643 keV excitation energy has the properties of theI π=8+ member of the ground state band. There are additional positive-parity high-spin states which do not fit into rotational bands. All types of positive-parity states are well accounted for by shell model calculations.

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References

  1. Endt, P.M., van der Leun, C.: Nucl. Phys. A310, 1 (1978)

    Google Scholar 

  2. Das Gupta, S., Harvey, M.: Nucl. Phys. A94, 602 (1967)

    Google Scholar 

  3. Glatz, F., Betz, P., Siefert, J., Heidinger, F., Röpke, H.: Phys. Rev. Lett.46, 1559 (1981)

    Google Scholar 

  4. Cole, B.J., Watt, A., Whitehead, R.R.: J. Phys. G1, 213 (1975)

    Google Scholar 

  5. McGrory, J.B., Wildenthal, B.H.: Annu. Rev. Nucl. Part. Sci.30, 383 (1980)

    Google Scholar 

  6. van Eijkern, F.E.H., Timmer, G.A., Meurders, F., Glaudemans, P.W.M.: Z. Phys. A — Atoms and Nuclei287, 337 (1976)

    Google Scholar 

  7. Van Eijkern, F.E.H.: Thesis, University of Utrecht

  8. Betz, P., Braun, G., Hammel, G., Urban, J.: Nucl. Instrum. Methods119, 199 (1974)

    Google Scholar 

  9. Moss, C.E., Sherman, J.D.: Nucl. Phys. A259, 413 (1976)

    Google Scholar 

  10. Maas, J.W., Somorjai, E., Graber, H.D., van den Wijngaart, C.D., van der Leun, C.: Nucl. Phys. A301, 213 (1976)

    Google Scholar 

  11. Meyer, M.A., Venter, I., Reitmann, D.: Nucl. Phys. A250, 235 (1975)

    Google Scholar 

  12. Litherland, A.E., Ferguson, J.A.: Can. J. Phys.39, 788 (1961)

    Google Scholar 

  13. Rose, H.J., Brink, D.M.: Rev. Mod. Phys.39, 306 (1967)

    Article  Google Scholar 

  14. Grawe, H., Lieb, K.P.: Nucl. Phys. A127, 13 (1969)

    Google Scholar 

  15. Lindhard, J., Scharff, M., Schiøtt, H.E.: Mat. Fys. Med. Dan. Vid. Selsk.33, No. 14 (1963)

  16. Northcliffe, L.C., Schilling, R.F.: Nucl. Data A7, 233 (1970)

    Google Scholar 

  17. Endt, P.M.: At. Data Nucl. Data Tables23, 9 (1978)

    Google Scholar 

  18. Lane, A.M.: Rev. Mod. Phys.32, 519 (1960)

    Google Scholar 

  19. Röpke, H., Glattes, V., Hammel, G.: Nucl. Phys. A172, 506 (1971)

    Google Scholar 

  20. Gove, H.E.: Nuclear Reactions Vol. I, p. 259, Amsterdam: North Holland Publ. Co. 1959

    Google Scholar 

  21. Röpke, H., Anyas-Weiss, N., Litherland, A.E.: Phys. Lett.27 B, 368 (1968)

    Google Scholar 

  22. Bitterwolf, E., Betz, P., Burkard, A., Glatz, F., Heidinger, F., Kern, Th., Lehmann, R., Norbert, S., Siefert, J., Röpke, H.: Z. Phys. A — Atoms and Nuclei298, 279 (1980)

    Google Scholar 

  23. Anyas-Weiss, N., Litherland, A.E., Smulders, P.J.M.: Can. J. Phys.50, 1949 (1972)

    Google Scholar 

  24. Lam, S.T., Litherland, A.E., Alexander, T.K.: Can. J. Phys.47, 1371 (1969)

    Google Scholar 

  25. Pelte, D., Häusser, O., Alexander, T.K., Hooten, B.W., Evans, H.C.: Phys. Lett.29 B, 660 (1969)

    Google Scholar 

  26. Anyas-Weiss, N., Charlesworth, A.M., Carlson, L.E., Jackson, K.P., Azuma, R.E.: Can. J. Phys.47, 1725 (1969)

    Google Scholar 

  27. Lam, S.T., Litherland, A.E., Azuma, R.E.: Can. J. Phys.49, 685 (1971)

    Google Scholar 

  28. Dalmas, J., Leccia, F., Aléonard, M.M.: Phys. Rev. C9, 2200 (1974)

    Google Scholar 

  29. Neal, G.F., Lam, S.T.: Phys. Lett.45 B, 127 (1973)

    Google Scholar 

  30. Zofka, J., Ripka, G.: Nucl. Phys. A168, 65 (1971)

    Google Scholar 

  31. Sauer, P.O., Faessler, A., Wolter, H.H., Stingl, M.M.: Nucl. Phys. A215, 257 (1969)

    Google Scholar 

  32. Pelet, J., Letourneux, J.: Nucl. Phys. A281, 277 (1977)

    Google Scholar 

  33. Strottmann, D., Arima, A.: Nucl. Phys. A162, 605 (1971)

    Google Scholar 

  34. Bar-Touv, J., Goswami, A.: Phys. Lett.28 B, 391 (1969)

    Google Scholar 

  35. Endt, P.M., van der Leun, C.: Nucl. Phys. A A105, 1 (1967)

    Google Scholar 

  36. Gibson, E.F., Battleson, K., McDaniels, D.K.: Phys. Rev.172, 1004 (1968)

    Google Scholar 

  37. Huang, F.C.P., Gibson, E.F., McDaniels, D.K.: Phys. Rev. C3, 1222 (1971)

    Google Scholar 

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Authors and Affiliations

  1. Fakultät für Physik der Universität, Freiburg i. Br., Federal Republic of Germany

    F. Glatz, J. Siefert, P. Betz, E. Bitterwolf, A. Burkard, F. Heidinger, Th. Kern, R. Lehmann, S. Norbert & H. Röpke

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  1. F. Glatz
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  2. J. Siefert
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  3. P. Betz
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  4. E. Bitterwolf
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  5. A. Burkard
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  6. F. Heidinger
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  7. Th. Kern
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  8. R. Lehmann
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  9. S. Norbert
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  10. H. Röpke
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Additional information

Work supported by Deutsche Forschungsgemeinschaft

The authors are indebted to Miss G. Born for target preparation, to Miss S. Geugelin for typing this manuscript and to the staff of the accelerator.

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Glatz, F., Siefert, J., Betz, P. et al. Structure of28Si from the spectroscopy of high-spin states. Z Physik A 303, 239–251 (1981). https://doi.org/10.1007/BF01424765

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  • DOI: https://doi.org/10.1007/BF01424765

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