New microsecond isomers in 189, 190Bi

Authors :: Dieter Ackermann
H. Schaffner
P. Van Duppen
C.D. O'Leary
Andrei Andreyev
G. Münzenberg
S. Saro
F. P. Heßberger
S. Reshitko
J. Gerl
Bettina Lommel
Michael Taylor
P. Cagarda
S. Hofmann
A. Lavrentiev
A. Keenan
M. Matos
R. D. Page
Marc Huyse
Matti Leino
L. Weissman
Ramon Wyss
Heikki Kettunen
A. Kleinböhl
C. Moore
C. Schlegel
Source :: The European Physical Journal A. 10:129-133
Publication Year :: 2001
Publisher :: Springer Science and Business Media LLC, 2001.
Abstract: New microsecond isomers in the neutron-deficient isotopes 189g, 190Bi 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 13/2]13/2+ excited states in the odd-mass Bi nuclei is discussed.