Fast-timing measurements of excited states in 67 Cu

Cristina Nita, D. Bucurescu, N. Mărginean, M. Avrigeanu, G. Bocchi, S. Bottoni, A. Bracco, Alison Bruce, G. Căta-Danil, G. Coló, D. Deleanu, D. Filipescu, D. Ghită, T. Glodariu, S. Leoni, C. Mihai, P.J.R. Mason, R. Mărginean, A. Negret, D. PantelicăZ. Podolyák, P.H. Regan, T. Sava, L. Stroe, S. Toma, C.A. Ur, E. Wilson

Research output: Contribution to journalArticle

Abstract

The half-lives of the 9/2 + , 13/2+ , and 15/2+ yrast states in the neutron-rich 67Cu nucleus were determined by using the in-beam fast-timing technique. The experimentally deduced E3 transition strength for the decay of the 9/2+ level to the 3/2- ground state indicates that the wave function of this level might contain a collective component arising from the coupling of the odd proton p3/2 with the 3- state in 66Ni. Theoretical interpretations of the 9/2+ state are presented within the particle-vibration weak-coupling scheme involving the unpaired proton and the 3- state from 66Ni and within shell-model calculations with a 56Ni core using the jj44b residual interaction. The shell model also accounts reasonably well for the other measured electromagnetic transition probabilities.
Original languageEnglish
JournalPhysical Review C
Volume89
DOIs
Publication statusPublished - 25 Jun 2014

Keywords

  • nucleus
  • fast-timing
  • shell-model
  • electromagnetic

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    Nita, C., Bucurescu, D., Mărginean, N., Avrigeanu, M., Bocchi, G., Bottoni, S., Bracco, A., Bruce, A., Căta-Danil, G., Coló, G., Deleanu, D., Filipescu, D., Ghită, D., Glodariu, T., Leoni, S., Mihai, C., Mason, P. J. R., Mărginean, R., Negret, A., ... Wilson, E. (2014). Fast-timing measurements of excited states in 67 Cu. Physical Review C, 89. https://doi.org/10.1103/PhysRevC.89.064314