Advertisement

Zeitschrift für Physik A Hadrons and Nuclei

, Volume 355, Issue 1, pp 151–156 | Cite as

Investigation of vibrational levels in226Ra by coulomb excitation and by the226Ra(d,pnγ) reaction

  • B. Ackermann
  • Ch. Fleischmann
  • H. Baltzer
  • J. de Boer
  • T. Czosnyka
  • C. Günther
  • U. Müller
  • T. Weber
Article
  • 15 Downloads

Abstract

Vibrational bands in226Ra were studied by Coulomb excitation and by the226Ra(d,pnγ) reaction. The first-excitedK π = 0+ and 1 bands with known band heads at 825 and 1049 keV, respectively, were extended up to the 8+ and 7 levels. A new 2+ level at 1110 keV and the known 2+ level at 1156 keV were observed following Coulomb excitation and interpreted asγ vibration and possible member of a second-exitedK π = 0+ band, respectively. TheE1 andE2 branching ratios from these vibrational bands to the ground and first-excited 0 band are explained within the rotational model including band mixings. No evidence was found for a 0+ level at 650 keV proposed earlier.

PACS

23.20 25.40 27.90.+ 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Åberg, S., Flocard, H., Nazarewicz, W.: Ann. Rev. Nucl. Part. Sci. 40, 439 (1990)CrossRefADSGoogle Scholar
  2. 2.
    Wollersheim, H.J., Emling, H., Grein, H., Kulessa, R., Simon, R.S., Fleischmann, C., deBoer, J., Hauber, E., Lauterbach, C., Schandera, C., Butler, P.A., Czosnyka, T.: Nucl. Phys. A556, 261 (1993)ADSGoogle Scholar
  3. 3.
    Ellis-Akovali, Y.A.: Nuclear Data Sheets 50, 229 (1987)CrossRefGoogle Scholar
  4. 4.
    Zimmermann, R., Behrens, H., de Boer, J., Riess, F., Novotny, R., Pelte, D., Winkler, U.: Verh. Deut. Phys. Ges. 15, 1231 (1980)Google Scholar
  5. 5.
    Zimmermann, R.: Ph.D. thesis, University of München (1980)Google Scholar
  6. 6.
    van den Berg, A.M., Blasi, N., Siemssen, R.H., Sterrenburg, W.A., Sujkowski, Z.: Nucl. Phys. A422, 45 (1984)ADSGoogle Scholar
  7. 7.
    Kurcewicz, W., Ruchowska, E., Kaffrell, N., Björnstad, T., Nyman, G.: Nucl. Phys. A356, 15 (1981) and Institute of Nuclear Chemistry, University of Mainz, Report IKMz 80-1 (1980)ADSGoogle Scholar
  8. 8.
    Ackermann, B., Baltzer, H., Ensel, C., Freitag, K., Grafen, V., Günther, C., Herzog, P., Manns, J., Marten-Tölle, M., Müller, U., Prinz, J., Romanski, I., Tölle, R., de Boer, J., Gollwitzer, N., Maier, H.J.: Nucl. Phys. A559, 61 (1993)ADSGoogle Scholar
  9. 9.
    Fleischmann, C.: Ph.D. thesis, University of München (1992)Google Scholar
  10. 10.
    Ackermann, B.: Ph.D. thesis, University of Bonn (1992)Google Scholar
  11. 11.
    Bohr, A., Mottelson, B.R.: Nuclear structure. Vol. II. Reading, Mass.: Benjamin 1975Google Scholar
  12. 12.
    McGowan, F.K., Bemis, C.E. Jr., Milner, W.T., Ford, J.L.C. Jr., Robinson, R.L., Stelson, P.H.: Phys. Rev. C10, 1146 (1974)ADSGoogle Scholar
  13. 13.
    Ackermann, B., Baltzer, H., Freitag, K., Günther, C., Herzog, P., Manns, J., Müller, U., Paulsen, R., Sevenich, P., Weber, T., Will, B., de Boer, J., Graw, G., Levon, A.I., Loewe, M., Lösch, A., Müller-Zanotti, E.: Z. Phys. A350, 13 (1994)Google Scholar
  14. 14.
    Venema, W.Z., Jansen, J.F.W., Janssens, R.V.F., van Klinken, J.: Phys. Lett. 156B, 163 (1985)ADSGoogle Scholar
  15. 15.
    Baltzer, H., Freitag, K., Günther, C., Herzog, P., Manns, J., Müller, U., Paulsen, R., Sevenich, P., Weber, T., Will, B.: Z. Phys. A352, 47 (1995)Google Scholar

Copyright information

© Springer-Verlag 1996

Authors and Affiliations

  • B. Ackermann
    • 1
  • Ch. Fleischmann
    • 2
  • H. Baltzer
    • 1
  • J. de Boer
    • 2
  • T. Czosnyka
    • 3
  • C. Günther
    • 1
  • U. Müller
    • 1
  • T. Weber
    • 1
  1. 1.Institut für Strahlen- und KernphysikUniversität BonnBonnGermany
  2. 2.Sektion PhysikUniversität MünchenGarchingGermany
  3. 3.Heavy-Ion LaboratoryWarsaw UniversityWarszawaPoland

Personalised recommendations