Search for Intrinsic Excitations in 152Sm

Authors :: Kulp, W. D.
Wood, J. L.
Garrett, P. E.
Wu, C. Y.
Cline, D.
Allmond, J. M.
Bandyopadhyay, D.
Dashdorj, D.
Choudry, S. N.
Hayes, A. B.
Hua, H.
Mynk, M. G.
McEllistrem, M. T.
McKay, C. J.
Orce, J. N.
Teng, R.
Yates, S. W.
Publication Year :: 2008
Publisher :: arXiv, 2008.
Abstract: The 685 keV excitation energy of the first excited 0+ state in 152Sm makes it an attractive candidate to explore expected two-phonon excitations at low energy. Multiple-step Coulomb excitation and inelastic neutron scattering studies of 152Sm are used to probe the E2 collectivity of excited 0+ states in this "soft" nucleus and the results are compared with model predictions. No candidates for two-phonon K=0+ quadrupole vibrational states are found. A 2+, K=2 state with strong E2 decay to the first excited K=0+ band and a probable 3+ band member are established.<br />Comment: 4 pages, 6 figures, accepted for publication as a Rapid Communication in Physical Review C