Shape coexistence in 187Au studied by laser spectroscopy

Barzakh, A. E.; Atanasov, D.; Andreyev, A. N.; Monthery, M. Al; Althubiti, N. A.; Andel, B.; Antalic, S.; Blaum, K.; Cocolios, T. E.; Cubiss, J. G.; Van Duppen, P.; Day Goodacre, T.; de Roubin, A.; Farooq-Smith, G. J.; Fedorov, D. V.; Fedosseev, V. N.; Fink, D.; Gaffney, L. P.; Ghys, L.; Harding, R. D.; Huyse, M.; Imai, N.; Kreim, S.; Lunney, D.; Lynch, K. M.; Manea, V.; Marsh, B. A.; Martinez Palenzuela, Y.; Molkanov, P. L.; Neidherr, D.; Rosenbusch, M.; Rossel, R. E.; Rothe, S.; Schweikhard, L.; Seliverstov, M. D.; Sels, S.; Van Beveren, C.; Verstraelen, E.; Welker, A.; Wienholtz, F.; Wolf, R. N.; Zuber, K.

doi:10.1103/PhysRevC.101.064321

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Shape coexistence in ¹⁸⁷Au studied by laser spectroscopy

MPG-Autoren

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Atanasov, D.
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

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Blaum, K.
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

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de Roubin, A.
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

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Fink, D.
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

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Kreim, S.
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

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Manea, V.
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

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Wolf, R. N.
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

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https://journals.aps.org/prc/pdf/10.1103/PhysRevC.101.064321
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Zitation

Barzakh, A. E., Atanasov, D., Andreyev, A. N., Monthery, M. A., Althubiti, N. A., Andel, B., et al. (2020). Shape coexistence in ¹⁸⁷Au studied by laser spectroscopy. Physical Review C, 101(6): 064321. doi:10.1103/PhysRevC.101.064321.

Zitierlink: https://hdl.handle.net/21.11116/0000-0006-9C27-F

Zusammenfassung

Hyperfine-structure parameters and isotope shift of the 9/2⁻ isomeric state in ¹⁸⁷Au relative to ¹⁹⁷Au for the 267.6⁻ nm atomic transition have been measured for the first time using the in-source resonance-ionization spectroscopy technique. The magnetic dipole moment and change in the mean-square charge radius for this 9/2⁻ isomer have been deduced. The observed large isomer shift relative to the 1/2⁺ ground state in ¹⁸⁷Au confirms the occurrence of the shape coexistence in ¹⁸⁷Au proposed earlier from the analysis of the nuclear spectroscopic data and particle plus triaxial rotor calculations. The analysis of the magnetic moment supports the previously proposed 9/2⁻, 1/2⁻ [541] assignment at moderate prolate deformation for ¹⁸⁷Au^m.