Phys.Rev. C 89, 014313 (2014)

S.Ilieva, M.Thurauf, Th.Kroll, R.Krucken, T.Behrens, V.Bildstein, A.Blazhev, S.Bonig, P.A.Butler, J.Cederkall, T.Davinson, P.Delahaye, J.Diriken, A.Ekstrom, F.Finke, L.M.Fraile, S.Franchoo, Ch.Fransen, G.Georgiev, R.Gernhauser, D.Habs, H.Hess, A.M.Hurst, M.Huyse, O.Ivanov, J.Iwanicki, P.Kent, O.Kester, U.Koster, R.Lutter, M.Mahgoub, D.Martin, P.Mayet, P.Maierbeck, T.Morgan, O.Niedermeier, M.Pantea, P.Reiter, T.R.Rodriguez, Th.Rolke, H.Scheit, A.Scherillo, D.Schwalm, M.Seidlitz, T.Sieber, G.S.Simpson, I.Stefanescu, S.Thiel, P.G.Thirolf, J.Van de Walle, P.Van Duppen, D.Voulot, N.Warr, W.Weinzierl, D.Weisshaar, F.Wenander, A.Wiens, S.Winkler

Coulomb excitation of neutron-rich Cd isotopes

NUCLEAR REACTIONS ¹⁰⁸Pd(¹²²Cd, ¹²²Cd'), ⁶⁴Zn, ¹⁰⁴Pd(¹²⁴Cd, ¹²⁴Cd'), ⁶⁴Zn(¹²⁶Cd, ¹²⁶Cd'), E=2.85 MeV/nucleon, [secondary ^122,124,126Cd beams from ²³⁸U(p, X), E=1.2 GeV primary reaction]; measured Eγ, Iγ, particle spectra, γγ-, (particle)γ-coin, γ-ray yields, γ(θ), σ(θ), half-life of first 2+ state of ¹²⁶Cd by DSAM using REXTRAP and EBIS setup, Miniball array for γ rays and DSSDs for particle detection at REX-ISOLDE-CERN facility. ^122,124,126Cd; deduced levels, Coulomb-excitation σ, transition and diagonal matrix elements, static quadrupole moments, and B(E2) for first 2+ states. Comparison with shell model and beyond mean field calculations. Discussed onset of collectivity in the vicinity of Z=50 and N=82 shell closures. Systematics of experimental and theoretical values of B(E2) for first 2+ states in A=116-130 even Cd isotopes.

doi: 10.1103/PhysRevC.89.014313