New microsecond isomers in 189, 190Bi

Authors :: Andreyev, A.N.
Ackermann, D.
Cagarda, P.
Gerl, J.
Heßberger, F.P.
Hofmann, S.
Huyse, M.
Keenan, A.
Kettunen, H.
Kleinböhl, A.
Lavrentiev, A.
Leino, M.
Lommel, B.
Matos, M.
Münzenberg, G.
Moore, C.J.
O'Leary, C.D.
Page, R.D.
Reshitko, S.
Saro, S.
Schlegel, C.
Schaffner, H.
Taylor, M.J.
Van Duppen, P.
Weissman, L.
Wyss, R.
Source :: The European Physical Journal A - Hadrons and Nuclei; 20010401, Vol. 10 Issue: 2 p129-133, 5p
Publication Year :: 2001
Abstract: Abstract:: New microsecond isomers in the neutron-deficient isotopes <superscript>189g, 190</superscript>Bi have been identified after in-flight separation by the velocity filter SHIP. The evaporation residues were identified on the basis of delayed recoil-γ/X-ray, recoil-γ/X-ray-α and excitation function measurements. The systematics of the [ π1i <subscript>13/2</subscript>]13/2<superscript>+</superscript> excited states in the odd-mass Bi nuclei is discussed.