Abstract
A level scheme has been established for 9437 Rb57 based on studies at the fission-product separator JOSEF ofγγ coincidences following theβ- decay of94Kr. For the 190.7 keV level a half-life of 2.5(8) ns has been determined through the centroid-shift method. The majorβ-decay branch of94Kr proceeds with log ft=3.7 into the 988.4 keV state in94Rb. This transition must be of the 0+→1+ GT type involving the transitionνg7/2→πg9/2. IBFFM calculations have been performed for94Rb, starting from the parametrization used in the previous IBM investigations for the isotope93Rb and the isotone96Y. A theoretical interpretation of the low-lying levels including propositions for the spins is given in a comparison to the available data.
Similar content being viewed by others
References
Thibault, C., Touchard, F., Büttgenbach, S., Klapisch, R., de Saint Simon, M., Duong, H.T., Jacquinot, P., Juncar, P., Liberman, S., Pillet, P., Pinard, J., Vialle, J.L., Pesnelle, A., Huber, G.: Phys. Rev. C23, 2720 (1981)
Federmann, P., Pittel, S.: Phys. Rev. C20, 820 (1979)
Carter, H.K., Wohn, F.K., Talbert, W.L. Jr., McConnell, J.R., Lin, J.: Private communication to D.C. Kocher: Nuclear Data Sheets10, 241 (1973)
Börner, H.G., Davidson, W.F., Almeida, J., Blachot, J., Pinston, J.A., van Assche, P.H.M.: Nucl. Instrum. Methods164, 579 (1979)
Kawase, Y., Funakoshi, Y., Okano, K.: Z. Phys. A — Atoms and Nuclei318, 191 (1984)
Lawin, H., Eidens, J., Borgs, W., Fabbri, R., Grüter, J.W., Joswig, G., Khan, T.A., Lauppe, W.D., Sadler, G., Selič, H.A., Shaanan, M., Sistemich, K., Armbruster, P.: Nucl. Instrum. Methods137, 103 (1976)
Lederer, C.M., Shirley, V.S. (eds.) Table of isotopes, 7th Edn. New York: John Wiley 1978
Ohm, H., Lhersonneau, G., Sistemich, K., Pfeiffer, B., Kratz, K.-L.: Z. Phys. A —Atomic Nuclei327, 483 (1987)
Müller, H.W.: Nuclear Data Sheets44, 277 (1985)
Bischof, C.J., Talbert, W.L., Jr.: Phys. Rev. C15, 1047 (1977)
Brant, S., Lhersonneau, G., Paar, V., Sistemich, K.: Z. Phys. A — Atomic Nuclei333, 1 (1989)
Kratz, K.-L., Ohm, H., Schröder, A., Gabelmann, H., Ziegert, W., Pfeiffer, B., Jung, G., Monnand, E., Pinston, J.A., Schussler, F., Crawford, G.I., Prussin, S.G., de Oliveira, Z.M.: Z. Phys. A Atoms and Nuclei312, 43 (1983)
Brant, S., Paar, V., Vretenar, D.: Z. Phys. A —Atoms and Nuclei319, 355 (1984)
Paar, V.: In: Capture gamma-ray spectroscopy and related topics. Raman, S. (ed.) New York: American Institute of Physics 1985
Hübsch, T., Paar, V., Vretenar, D.: Phys. Lett.151B, 320 (1985)
Lopac, V., Brant, S., Paar, V., Schult, O.W.B., Seyfarth, H., Balantekin, A.B.: Z. Phys. A — Atomic Nuclei323, 491 (1986)
Brant, S., Paar, V., Vretenar, D., Alaga, G., Seyfarth, H., Schult, O.W.B., Bogdanović, M.: Phys. Lett.195B, 111 (1987)
Iachello, F., Scholten, O.: Phys. Rev. Lett.43, 679 (1979)
Arima, A., Iachello, F.: Phys. Rev. Lett.35, 1069 (1975)
Brant, S., Lhersonneau, G., Stolzenwald, M.L., Sistemich, K., Paar, V.: Z. Phys. A — Atomic Nuclei329, 301 (1988)
Paar, V.: Nucl. Phys. A331, 16 (1979)
Paar, V.: Nucl. Phys. A211, 29 (1973)
Kratz, K.-L., Pfeiffer, B.: Institut für Kernphysik, Universität Mainz: Private communication
Krumlinde, J., Möller, P.: Nucl. Phys. A417, 419 (1984)
Lhersonneau, G., Brant, S., Ohm, H., Sistemich, K.: In: Proceedings of the 5th International Conference on Nuclei far from Stability, Rosseau Lake, Ontario, Canada 1987, Towner, I.S. (ed.), p. 393. AIP Conf. Proceedings 164, 1987
Brant, S., Sistemich, K., Seyfarth, H., Ohm, H., Stolzenwald, M.L., Paar, V., Vretenar, D., Vorkapić, D., Lopac, V., Meyer, R.A., Lhersonneau, G., Kratz, K.-L., Pfeiffer, B.: In: Nuclear structure of the zirconium region. Ebert, J., Meyer, R.A., Sistemich, K. (eds.), p. 199. Berlin, Heidelberg, New York: Springer 1988
Author information
Authors and Affiliations
Additional information
We acknowledge very fruitful discussions with Drs. H.G. Börner, J. Bonn, G.Huber, K.-L.Kratz, R. Neugart, E.Otten, B.Pfeiffer and O.W.B. Schult. Mrs. c. Strauch has very carefully prepared the manuscript.
During the studies at3
During the studies at3, as an Alexander-von-Humboldt fellow
Supported by Internationales Büro, Kernforschungsanlage Jülich, F.R. Germany