Oblate bands in A approximately 200 bismuth nuclei

Dagnall, P.J. and Beausang, C.W. and Clark, R.M. and Wadsworth, R. and Bhattacharjee, S. and Fallon, P. and Forsyth, P.D. and Fossan, D.B. and Defrance, G. and Gale, S.J. and Hannachi, F. and Hauschild, K. and Hibbert, I.M. and Hubel, H. and Jones, P.M. and Joyce, M.J. and Korichi, A. and Korten, W. and Lafosse, D.R. and Paul, E.S. and Schnare, H. and Starosta, K. and Sharpey-Schafer, J.F. and Twin, P.J. and Vaska, P. and Waring, M.P. and Wilson, J.N. (1994) Oblate bands in A approximately 200 bismuth nuclei. Journal of Physics G: Nuclear and Particle Physics, 20 (10). pp. 1591-1597. ISSN 0954-3899

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The nuclei 198-200Bi were populated via the 186W(19F,xn)198-200Bi reaction at beam energies of 115 MeV and 105 MeV. Another experiment, aimed at investigating the high-spin-level structure of 203,204Bi, used the 198Pt(11B,xn) reaction at a beam energy of 74 MeV. Five new Delta I=1 rotational structures, consisting of stretched magnetic dipole transitions, have been observed. One of these bands is assigned to 198Bi, one to 199Bi, two to 200Bi, and one to 203Bi. The behaviour of the dynamic moments of inertia of these oblate bands is compared with other bands in neighbouring Pb and Bi nuclei.

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Journal Article
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Journal of Physics G: Nuclear and Particle Physics
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01 Apr 2019 12:20
Last Modified:
15 Sep 2023 00:53