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Coulomb Excitation of <sup>74</sup>Ge

ORAL

Abstract

The electromagnetic properties of low-lying states in 74Ge have been investigated using a multi-step Coulomb excitation measurement carried out at the ATLAS facility of the Argonne National Laboratory. The experimental setup consisted of the GRETINA multidetector array coupled to the heavy-ion counter, CHICO2. This coupling allowed for precise Doppler correction and clean kinematic separation of the scattered particles. The quadrupole collectivity and triaxiality of the ground-state and quasi-gamma bands -- which were Coulomb excited to spins 8+ and 4+, respectively -- have been investigated in the framework of the generalized triaxial rotor model and the spherical shell model. Preliminary results from the analysis will be presented in the context of similar studies performed for the neighboring 72,76Ge [1,2] nuclei.

[1] A. D. Ayangeakaa, et. al. PLB 754, 254-259 (2016)

[2] A. D. Ayangeakaa, et. al. PRL 123, 102501 (2019)

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Presenters

  • Nirupama Sensharma

    Argonne National Laboratory

Authors

  • Nirupama Sensharma

    Argonne National Laboratory

  • Akaa D Ayangeakaa

    University of North Carolina at Chapel Hill, TUNL

  • Tyler M Kowalewski

    University of North Carolina at Chapel Hill, TUNL

  • Robert V Janssens

    University of North Carolina at Chapel Hill, TUNL

  • Qibo B Chen

    East China Normal University

  • Scott R Carmichael

    University of Notre Dame

  • Michael P Carpenter

    Argonne National Laboratory

  • M. Devlin

    Los Alamos National Laboratory

  • Claus Mueller Gatermann

    Argonne National Laboratory

  • D. J Hartley

    United States Naval Academy

  • Jacob Heery

    University of Surrey

  • Jack Henderson

    University of Surrey

  • Heshani Jayatissa

    Los Alamos National Laboratory

  • Samantha R Johnson

    University of North Carolina at Chapel Hill, TUNL

  • Stanimir P Kisyov

    Lawrence Livermore Natl Lab

  • Filip G Kondev

    Argonne National Laboratory

  • Torben Lauritsen

    Argonne National Laboratory

  • Walter Reviol

    Argonne National Laboratory

  • Marco Rocchini

    University of Guelph

  • E. Rubino

    Facility for Rare Isotope Beams, Michigan State University

  • Ching-Yen Wu

    Lawrence Livermore Natl Lab

  • Antonella Saracino

    University of North Carolina at Chapel Hill, TUNL

  • Dariusz Seweryniak

    Argonne National Laboratory

  • Marco Siciliano

    Argonne National Laboratory