Shape and structure of N=Z 64Ge; Electromagnetic transition rates from the application of the Recoil Distance Method to knock-out reaction

K. Starosta; A. Dewald; A. Dunomes; P. Adrich; A. M. Amthor; T. Baumann; D. Bazin; M. Bowen; B. A. Brown; A. Chester; A. Gade; D. Galaviz; T. Glasmacher; T. Ginter; M. Hausmann; M. Horoi; J. Jolie; B. Melon; D. Miller; V. Moeller; R. P. Norris; T. Pissulla; M. Portillo; W. Rother; Y. Shimbara; A. Stolz; C. Vaman; P. Voss; D. Weisshaar; V. Zelevinsky

doi:10.1103/physrevlett.99.042503

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Shape and structure of N=Z 64Ge; Electromagnetic transition rates from the application of the Recoil Distance Method to knock-out reaction

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Abstract

Transition rate measurements are reported for the first and the second 2+ states in N=Z 64Ge. The experimental results are in excellent agreement with large-scale Shell Model calculations applying the recently developed GXPF1A interactions. Theoretical analysis suggests that 64Ge is a collective gamma-soft anharmonic vibrator. The measurement was done using the Recoil Distance Method (RDM) and a unique combination of state-of-the-art instruments at the National Superconducting Cyclotron Laboratory (NSCL). States of interest were populated via an intermediate-energy single-neutron knock-out reaction. RDM studies of knock-out and fragmentation reaction products hold the promise of reaching far from stability and providing lifetime information for excited states in a wide range of nuclei.

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K. Starosta, A. Dewald, A. Dunomes, P. Adrich, A. M. Amthor, T. Baumann, D. Bazin, M. Bowen, B. A. Brown, A. Chester, A. Gade, D. Galaviz, T. Glasmacher, T. Ginter, M. Hausmann, M. Horoi, J. Jolie, B. Melon, D. Miller, V. Moeller, R. P. Norris, T. Pissulla, M. Portillo, W. Rother, Y. Shimbara, A. Stolz, C. Vaman, P. Voss, D. Weisshaar, V. Zelevinsky. 2007-03-13. Shape and structure of N=Z 64Ge; Electromagnetic transition rates from the application of the Recoil Distance Method to knock-out reaction. https://doi.org/10.1103/physrevlett.99.042503

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