Spectroscopy of 91Zr51 at medium to high spins

Authors :: Qian, J.
Cakirli, R.B.
Ai, H.C.
Ayangeakaa, A.D.
Williams, S.J.
Casten, R.F.
Fitzpatrick, C.R.
Amon, L.
Winkler, R.
Garnsworthy, A.B.
Regan, P.H.
Thompson, N.J.
Gürdal, G.
Jones, G.A.
McCutchan, E.A.
Freeman, S.J.
Werner, V.
Heinz, A.
Publication Year :: 2007
Publisher :: The University of North Carolina at Chapel Hill University Libraries, 2007.
Abstract: Identification of near-yrast states in the β-stable nucleus 91Zr51 has been carried out using the fusion evaporation reaction, 82Se(13C,4n)91Zr at an incident beam energy of 50 MeV. States above the reported r = 6 μs, Iπ = 21/2+ isomeric level at Ex = 3167 keV have been identified for the first time in this work, a tentative decay scheme of near-yrast states to excitation energies in excess of 10 MeV has been constructed. These states are of relevance to shell model structures formed via limited valence-space configurations in this semi-magic N = 51 nucleus.