β-delayed γ-ray spectroscopy of 203,204Au and 200-202Pt

A.I. Morales, J. Benlliure, M. Gorska, H. Grawe, S. Verma, P.H. Regan, Zs. Podolyak, S. Pietri, R. Kumar, E. Casarejos, A. Algora, N. Alkhomashi, H. Àlvarez-Pol, G. Benzoni, A. Blazhev, P. Boutachkov, Alison Bruce, L. Cáceres, I.J. Cullen, Ana M. Denis BacelarP. Doornenbal, M.E. Estévez-Aguado, G.F. Farrelly, Y. Fujita, A.B. Garnsworthy, W. Gelletly, J. Gerl, J. Grebosz, R. Hoischen, I. Kojouharov, N. Kurz, S. Lalkovski, Z. Liu, C. Mihai, F. Molina, D. Mücher, W. Prokopowicz, B. Rubio, H. Schaffner, S.J. Steer, A. Tamii, S. Tashenov, J.J. Valiente-Dobon, P.M. Walker, H.J. Wollersheim, P.J. Woods

Research output: Contribution to journalArticle

Abstract

The β decay of five heavy, neutron-rich nuclei, 203,204Pt and 200-202Ir, has been investigated following relativistic cold fragmentation reactions of lead projectiles using the FRS+RISING setup at GSI. This paper reports on the study of the low-lying states in the decay daughter nuclei 203,204Au and 200-202Pt. The characteristic γ rays for each nucleus have been determined using β-delayed γ-ray spectroscopy. Tentative level schemes, relative intensities, and apparent β feedings are provided. These data are compared with shell-model calculations, which indicate a substantial contribution to the total β strength from high-energy first-forbidden β-decay transitions in this mass region.
Original languageEnglish
JournalPhysical Review C
Volume88
Issue number1
DOIs
Publication statusPublished - 22 Jul 2013

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    Morales, A. I., Benlliure, J., Gorska, M., Grawe, H., Verma, S., Regan, P. H., Podolyak, Z., Pietri, S., Kumar, R., Casarejos, E., Algora, A., Alkhomashi, N., Àlvarez-Pol, H., Benzoni, G., Blazhev, A., Boutachkov, P., Bruce, A., Cáceres, L., Cullen, I. J., ... Woods, P. J. (2013). β-delayed γ-ray spectroscopy of 203,204Au and 200-202Pt. Physical Review C, 88(1). https://doi.org/10.1103/PhysRevC.88.014319