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16 April 2024

» arxiv » 1010.3999

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Discovery of the shape coexisting 0+ state in 32Mg by a two neutron transfer reaction
K. Wimmer ; T. Kröll ; R. Krücken ; V. Bildstein ; R. Gernhäuser ; B. Bastin ; N. Bree ; J. Diriken ; P. Van Duppen ; M. Huyse ; N. Patronis ; P. Vermaelen ; D. Voulot ; J. Van de Walle ; F. Wenander ; L.M. Fraile ; R. Chapman ; B. Hadinia ; R. Orlandi ; J.F. Smith ; R. Lutter ; P.G. Thirolf ; M. Labiche ; A. Blazhev ; M. Kalkühler ; P. Reiter ; M. Seidlitz ; N. Warr ; A.O. Macchiavelli ; H.B. Jeppesen ; E. Fiori ; G. Georgiev ; G. Schrieder ; S. Das Gupta ; G. Lo Bianco ; S. Nardelli ; J. Butterworth ; J. Johansen ; K. Riisager ;
Date:	19 Oct 2010
Abstract:	The Island of Inversion nucleus 32Mg has been studied by a (t,p) two neutron transfer reaction in inverse kinematics at REX-ISOLDE. The shape coexistent excited 0+ state in 32Mg has been identified by the characteristic angular distribution of the protons of the DeltaL = 0 transfer. The excitation energy of 1058 keV is much lower than predicted by any theoretical model. The low gamma-ray intensity observed for the decay of this 0+ state indicates a lifetime of more than 10 ns. Deduced spectroscopic amplitudes are compared with occupation numbers from shell model calculations.
Source:	arXiv, 1010.3999
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