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First observation of collective dipole rotational bands in the neutron-deficient bismuth nuclei

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  • R.M. Clark
  • R. Wadsworth
  • F. Azaiez
  • C.W. Beausang
  • A.M. Bruce
  • P.J. Dagnall
  • P. Fallon
  • P.M. Jones
  • M.J. Joyce
  • A. Korichi
  • E.S. Paul
  • J.F. Sharpey-Schafer
<mark>Journal publication date</mark>1993
<mark>Journal</mark>Journal of Physics G: Nuclear and Particle Physics
Issue number4
Number of pages6
Pages (from-to)57-62
Publication StatusPublished
<mark>Original language</mark>English


The nucleus 202Bi was populated via the 196Pt(11B,5n)202Bi reaction at a beam energy of 75 MeV. Three regular sequences of magnetic dipole transitions have been found. A comparison is made with the known Delta I=1 rotational bands seen in the neighbouring Pb nuclei. An interpretation in terms of collective oblate configurations involving high-K proton and alignable neutron orbitals is suggested.