Sub-Barrier Coulomb excitation of 106Cd with the JANUS setup at ReA3

ORAL

Abstract

Describing the evolution of the B(E2;0+→2+) transition strength in Sn isotopes from A=130 to 104 is challenging for shell-model calculations [1], making measures of collectivity near N=Z=50 100Sn quite interesting. We explore collectivity in Z=48, N=58 106Cd via Coulomb Excitation. Experimental results for 106Cd are contradictory: Recent lifetime measurements [2] disagree with NNDC values adopted from a 40 year old Coulomb excitation measurement [3]. B(E2) values derived from [2] disagree with large-scale shell model calculations, questioning the earlier good reproduction of quadrupole collectivity in 106Cd within the shell model.

The results of a Coulomb excitation measurement of 106Cd will be presented. The measurement will clarify collectivity in 106Cd, extend the data to higher-lying states, and add understanding of collectivity towards N=Z=50 100Sn.

[1] V. M. Bader et al., Phys. Rev. C 88, 051301(R) (2013)

[2] N. Benczer-Koller et al., Phys. Rev. C 94, 034303 (2016)

[3] M. T. Esat et al., Nucl. Phys. A 274, 237 (1976)


*This work was supported in part by the National Science Foundation under Contract No. PHY-1565546 (NSCL), by the US Department of Energy, Office of Nuclear Physics, under Grant No. DE-FG02-08ER41556 (NSCL) and under contract No. DE-AC52-07NA27344 (LLNL).

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Presenters

  • Daniel M Rhodes

    • National Superconducting Cyclotron Laboratory, Michigan State University

Authors

  • Daniel M Rhodes

    • National Superconducting Cyclotron Laboratory, Michigan State University

  • Alexandra Gade

    • Michigan State Univ
    • Michigan State University, National Superconducting Cyclotron Laboratory
    • National Superconducting Cyclotron Laboratory, Michigan State University
    • Michigan State University/ NSCL
    • MSU and NSCL

  • John Ash

    • National Superconducting Cyclotron Laboratory, Michigan State University

  • Peter C Bender

    • University of Massachusetts Lowell

  • Robert M Elder

    • National Superconducting Cyclotron Laboratory, Michigan State University

  • Brandon Elman

    • Michigan State University, National Superconducting Cyclotron Laboratory
    • National Superconducting Cyclotron Laboratory, Michigan State University

  • Jack Henderson

    • Lawrence Livermore National Lab

  • Mara Grinder

    • National Superconducting Cyclotron Laboratory, Michigan State University

  • Hironori Iwasaki

    • National Superconducting Cyclotron Laboratory, Michigan State University

  • Brenden Longfellow

    • National Superconducting Cyclotron Laboratory, Michigan State University

  • Tea Mijatovic

    • National Superconducting Cyclotron Laboratory, Michigan State University

  • Mark-Christoph Spieker

    • National Superconducting Cyclotron Laboratory, Michigan State University

  • Dirk W Weisshaar

    • National Superconducting Cyclotron Laboratory

  • Ching-Yen Wu

    • Lawrence Livermore National Lab