Abstract
The ground-state band of159Tb has been Coulomb excited up to spin 23/2 by 151-MeV40Ar ions. The lifetimes of the 9/2 to 23/2 levels have been determined by combining results obtained with the RD and DSA methods, theE2/M1 mixing ratios for ΔI=1 transitions have been measured using angular correlation techniques and the branching ratios for the levels up to spin 17/2 have been determined. The energies of the levels and the reducedM1 andE2 transition probabilities for their decay have been compared with the predictions of the rotational model, without and with ΔK=1 admixtures. No satisfactory agreement could be achieved for all available experimental data simultaneously.
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Inamura, T., Kearns, F., Varley, G., Lisle, J.C.: Nucl. Phys. A270, 255 (1976)
Taras, P., Ward, D., Andrews, H.R., Geiger, J.S., Graham, R.L., McLatchie, W.: Nucl. Phys. A289, 165 (1977)
Skensved, P., Chapman, R., Kozub, R.L., Leslie, J.R., McLatchie, W., Ward, D., Andrews, H.R., Häusser, O.: Nucl. Phys. A366, 125 (1981)
Bohr, A., Mottelson, B.R.: Nuclear structure. Vol. II. Reading, Mass.: Benjamin 1975
Lee, M.A., Reich, C.W.: Nucl. Data Sheets27, 155 (1979)
Diamond, R.M., Elbek, B., Stephens, F.S.: Nucl. Phys.43, 560 (1963)
Boehm, F., Goldring, G., Hagemann, G.B., Symons, G.D., Tveter, A.: Phys. Lett.22, 627 (1966)
Seaman, G.G., Bernstein, E.M., Palms, J.M.: Phys. Rev.161, 1223 (1967)
Van Hove, M.A., El Masri, Y., Holzmann, R., Janssens, R.V.F., Michel, C., Vervier, J.: Proc. Int. Conf. Nuclear Structure, Amsterdam 1982, Vol. I, p. 301
Van Hove, M.A., El Masri, Y., Holzmann, R., Janssens, R.V.F., Michel, C., Vervier, J.: Verh. Dtsch. Phys. Ges.5, 1141 (1983)
Chapman, R., Leslie, J.R., Maynard, M., Skensved, P., Ward, D., Sharpey-Schafer, J.F.: Nucl. Phys. A397, 296 (1983)
Van Hove, M.A.: Ph.D. Thesis, Louvain-la-Neuve: 1983
Krane, K.S.: Nucl. Instrum. Methods109, 401 (1973)
Yamazaki, T.: Nucl. Data Tables A3, 1 (1967)
Sie, S.H., Ward, D., Graham, R.L., Geiger, J.S., Andrews, H.R.: Private communication
Northcliffe, L.C., Schilling, R.F.: Nucl. Data Tables A7, 1 (1970)
Ward, D., Forster, J.S., Andrews, H.R., Mitchell, I.V., Ball, G.C., Davis, W.G., Costa, G.J.: Internal Report AECL-4914 (1974); see also: Sie, S.H., Ward, D., Graham, R.L., Geiger, J.S., Andrews, H.P.: Nucl. Phys. A291, 443 (1977)
Winterbon, K.B., Sigmund, P., Sanders, J.B.: Mat. Fys. Med. Dan. Selsk.37, 14 (1970)
Blaugrund, A.E.: Nucl. Phys.88, 501
Ziegler, J.F., Chu, W.K.: At. Nucl. Data Tables13, 463 (1974)
Guidry, M.W.: Ph.D. thesis, University of Tennessee; Sturm, R.J., Guidry, M.W.: Nucl. Instrum. Methods138, 343 (1976)
Québert, J.L., Nakai, K., Diamond, R.M., Stephens, F.S.: Nucl. Phys. A150, 68 (1970)
Guidry, M.W., Butler, P.A., Colombani, P., Lee, I.Y., Ward, D., Diamond, R.M., Stephens, F.S., Eichler, E., Johnson, N.R., Sturm, R.: Nucl. Phys. A266, 228 (1976)
Kerman, A.K.: Mat. Fys. Med. Dan. Vid. Selsk.30, 15 (1956)
Brockmeier, R.T., Wahlborn, S., Seppi, E.J., Boehm, F.: Nucl. Phys.63, 102 (1965)
Nilsson, S.G.: Mat. Fys. Med. Dan. Vid. Selsk.29, 16 (1955)
Lederer, C.M., Shirley, V.S.: Table of Isotopes, 7th Edn. New York: Wiley-Interscience 1978
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The work described in the present paper is part of the Ph.D. thesis of M.A.V.H.
We thank Irs. Y. Jongen and G. Ryckewaert and Dr. C. Pirart for the efficient running of the cyclotron of Louvain-la-Neuve, Mr. H. Folger for the preparation of the thin terbium targets used in our experiments, and Mr. P. Demaret for his skilful technical help during the course of the experiments.
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Van Hove, M.A., El Masri, Y., Grosse, E. et al. Electromagnetic transitions in the ground-state rotational band of159Tb. Z Physik A 319, 33–46 (1984). https://doi.org/10.1007/BF01429765
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DOI: https://doi.org/10.1007/BF01429765