Gamma-ray spectroscopy of 191,193Bi
Nieminen, P., Cocks, J. F. C., Dorvaux, O., Greenlees, P., Helariutta, K., Jones, P., . . . Wyss, R. (2001). Gamma-ray spectroscopy of 191,193Bi. Acta Physica Polonica B, 32 (3), 1019-1023. Retrieved from http://www.actaphys.uj.edu.pl/fulltext?series=Reg&vol=32&page=1019
Published inActa Physica Polonica B
© the Authors, 2001.
Very neutron-deficient 191,193Bi nuclei have been studied at the Department of Physics, University of Jyväskylä, Finland (JYFL) employing the Jurosphere II Ge-detector array coupled to the gas-filled recoil separator RITU and different tagging techniques. For the first time in heavy odd-mass nuclei, a collective band (oblate) is identified above the 2p–1h (1/2+) proton intruder state in 191Bi. In both 191,193Bi, a band based on isomeric 13/2+ state has been observed and oblate deformation for this state has been deduced.