Speaker
Christina Burbadge
(University of Guelph)
Description
Many approaches have been implemented in nuclear structure physics to interpret the nature of excited states in well-deformed nuclei, such as vibrational excitations in $\beta$ phonons and $\gamma$ phonons, as well as pairing excitations. However, due to a paucity of data about excited states in rare earth nuclei, in many cases even the first excited state, 0$^+_2$, is not known.
Direct two-neutron transfer reactions are a valuable tool for probing $0^{+}$ $\rightarrow$ $0^{+}$ transitions in well-deformed nuclei. Excited $0^+$ states in the $N=92$ nucleus $^{160}$Er have been studied via the ($p,t$) reaction with a highly-enriched $^{162}$Er target at the Maier-Leibnitz Laboratory in Garching, Germany, using a proton beam energy of 22 MeV and 24 MeV supplied by a Tandem Van de Graaff. Reaction products were momentum-analyzed with a Quadrupole-3-Dipole magnetic spectrograph. Strong population of the 0$^+_2$ state was observed with a large cross section greater than any other excited $0^+$ state. Preliminary results of the relative population of excited 0$^+$ states in $^{160}$Er and a possible intepretation will be presented.
Authors
Christina Burbadge
(University of Guelph)
P.E. Garrett
(University of Guelph)
Co-authors
A. Diaz Varela
(University of Guelph)
A.D. MacLean
(University of Guelph)
A.J. Radich
(University of Guelph)
C.E. Svensson
(University of Guelph)
D. Kisliuk
(University of Guelph)
D.S. Jamieson
(University of Guelph)
G.C. Ball
(TRIUMF)
H.-F. Wirth
(Ludwig-Maximilians-Universit\"{a}t M\"{u}nchen)
J. Loranger
(University of Guelph)
K.G. Leach
(Colorado School of Mines)
M.R. Dunlop
(University of Guelph)
R. Dunlop
(University of Guelph)
R. Hertenberger
(Ludwig-Maximilians-Universit\"{a}t M\"{u}nchen)
S. Triambak
(University of the Western Cape)
T. Faestermann
(Technishe Universitat Munchen)
V. Bildstein
(University of Guelph)
