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

A. I. Morales, J. Benlliure, M. Górska, H. Grawe, S. Verma, P. H. Regan, Zs Podolyák, S. Pietri, R. Kumar, E. Casarejos, A. Algora, N. Alkhomashi, H. Álvarez-Pol, G. Benzoni, A. Blazhev, P. Boutachkov, A. M. Bruce, L. S. Cáceres, I. J. Cullen, A. M. Denis BacelarP. Doornenbal, M. E. Estévez-Aguado, G. 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-Dobón, P. M. Walker, H. J. Wollersheim, P. J. Woods

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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
Article number014319
JournalPhysical Review C - Nuclear Physics
Volume88
Issue number1
DOIs
Publication statusPublished - Jul 22 2013

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ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Morales, A. I., Benlliure, J., Górska, M., Grawe, H., Verma, S., Regan, P. H., Podolyák, Z., Pietri, S., Kumar, R., Casarejos, E., Algora, A., Alkhomashi, N., Álvarez-Pol, H., Benzoni, G., Blazhev, A., Boutachkov, P., Bruce, A. M., Cáceres, L. S., Cullen, I. J., ... Woods, P. J. (2013). β-delayed γ-ray spectroscopy of 203,204Au and 200-202Pt. Physical Review C - Nuclear Physics, 88(1), [014319]. https://doi.org/10.1103/PhysRevC.88.014319