Acta Physica Polonica B
Vol. 34, No. 4, April 2003, page 2107
High K Bands in Mid-Supershell Nuclei
P.A. Butler, R.D. Humphreys, P.T. Greenlees, R.-D. Herzberg, D.G. Jenkins, G.D. Jones, H. Kankaanpaeae, H. Kettunen, P. Rahkila, C. Scholey, J. Uusitalo, N. Amzal, C. Andreoiu, A. Andreyev, D. Appelbe, J.E. Bastin, P.M.T. Brew, K. Eskola, S.J. Freeman, J. Gerl, N.J. Hammond, K. Hauschild, K. Helariutta, F.-P. Hessberger, A. Huerstel, P.J.C. Ikin, P.M. Jones, D.T. Joss, R. Julin, S. Juutinen, A. Keenan, T.-L. Khoo, W. Korten, P. Kuusiniemi, Y. Le Coz, M. Leino, A.-P. Leppaenen, M. Muikku, P. Nieminen, S.W. Odegård, R.D. Page, T. Page, J. Pakarinen, P. Reiter, J. Simpson, G. Sletten, Ch. Theisen, B.J. Varley, H.-J. Wollersheim
The spectrum of prompt conversion electrons emitted by excited 254No
nuclei has been measured, revealing discrete lines arising from transitions
within the ground state band. A striking feature is a broad distribution
that peaks near 100 keV and comprises high multiplicity electron cascades,
probably originating from M1 transitions within rotational bands built
on high K states. Evidence for the existence of isomeric states in 254No
is presented.
PACS numbers: 21.10.--k, 23.20.Lv, 23.20.Nx, 23.60.+e
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