Normal and intruder configurations in $^{34}$Si populated in the $\beta^-$ decay of $^{34}$Mg and $^{34}$Al

30 Aug 2019 Lica R. Rotaru F. Borge M. J. G. Grevy S. Negoita F. Poves A. Sorlin O. Andreyev A. N. Borcea R. Costache C. De Witte H. Fraile L. M. Greenlees P. T. Huyse M. Ionescu A. Kisyov S. Konki J. Lazarus I. Madurga M. Marginean N. Marginean R. Mihai C. Mihai R. E. Negret A. Nowacki F. Page R. D. Pakarinen J. Pucknell V. Rahkila P. Rapisarda E. Serban A. Sotty C. O. Stan L. Stanoiu M. Tengblad O. Turturica A. Van Duppen P. Warr N. Dessagne Ph. Stora T. Borcea C. Calinescu S. Daugas J. M. Filipescu D. Kuti I. Franchoo S. Gheorghe I. Morfouace P. Morel P. Mrazek J. Pietreanu D. Sohler D. Stefan I. Suvaila R. Toma S. Ur C. A.

The structure of $^{34}$Si was studied through $\gamma$ spectroscopy separately in the $\beta^-$ decays of $^{34}$Mg and $^{34}$Al at the ISOLDE facility of CERN. Different configurations in $^{34}$Si were populated independently from the two recently identified $\beta$-decaying states in $^{34}$Al having spin-parity assignments $J^\pi = 4^-$ dominated by the normal configuration $\pi (d_{5/2})^{-1} \otimes \nu (f_{7/2})$ and $J^\pi = 1^+$ by the intruder configuration $\pi (d_{5/2})^{-1} \otimes \nu (d_{3/2})^{-1}(f_{7/2})^{2}$... (read more)

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  • NUCLEAR EXPERIMENT