Behavior of intruder based states in light Bi and Tl isotopes: the study
of 187Bi 
decay
J.C. Batchelder1,2 - K.S. Toth3 - C.R. Bingham3,4 - L.T. Brown5,6 - L.F. Conticchio5,7 - C.N. Davids5 - R.J. Irvine8 - D. Seweryniak5,7 - W.B. Walters7 - J. Wauters4 - E.F. Zganjar2 - J.L. Wood9 - C. DeCoster10 - B. Decroix10 - K. Heyde10
1 UNIRIB, Oak Ridge Associated Universities, Oak Ridge TN, 37831, USA
2 Louisiana State University, Baton Rouge, LA 70803, USA
3 Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
4 University of Tennessee, Knoxville TN 37996, USA
6 Argonne National Laboratory, Argonne, IL 60439, USA
6 Vanderbilt University, Nashville TN 37235, USA
7 University of Maryland, College Park, MD 20742, USA
8 University of Edinburgh, Edinburgh, EH9 3JZ, UK
9 Georgia Institute of Technology, Atlanta, GA 30332, USA
10 Institute for Theoretical Physics and Institute for Nuclear Physics, Gent Belgium
Received: 10 September 1998 / Revised version: 18 December 1998 Communicated by D. Schwalm
Abstract
The excitation energies of the single-particle normal and intruder
levels in both 183Tl and 187Bi were measured for the first time via
the decay of 187Bi produced in the
97Mo(92Mo,pn)187Bi reaction. The previously unobserved
187Bi ground state (h9/2) to 183Tl ground state (s1/2)
transition was identified, establishing the 187Bi intruder state
excitation energy to be 112(21) keV, 70 keV less than that of the same level in
189Bi.
PACS
23.60.+e decay
Copyright Springer-Verlag
