Thorough $\ensuremath{\gamma}$-ray and particle decay investigations of $^{58}\mathrm{Ni}$

Thorough $γ$ -ray and particle decay investigations of ${}^{58}{Ni}$

E. K. Johansson, D. Rudolph, I. Ragnarsson, L. -L. Andersson, D. A. Torres, C. Andreoiu, C. Baktash, M. P. Carpenter, R. J. Charity, C. J. Chiara, J. Ekman, C. Fahlander, O. L. Pechenaya, W. Reviol, R. du Rietz, D. G. Sarantites, D. Seweryniak, L. G. Sobotka, C. H. Yu, and S. Zhu

Phys. Rev. C 80, 014321 – Published 30 July 2009

Abstract

The combined data from three fusion-evaporation reaction experiments have been utilized to investigate the semi-magic nucleus $_{28}^{58} {Ni}_{30}$ . To detect $γ$ rays in coincidence with evaporated particles, the Ge-detector array Gammasphere was used in conjunction with the charged-particle detectors Microball and LuWuSiA (the Lund Washington University Silicon Array), and a neutron detector array. The results yield a significantly extended level scheme of ${}^{58}{Ni}$ comprising some 340 $γ$ -ray transitions and include a total of at least 14 discrete particle decays into excited states of the daughter nuclei ${}^{54}{Fe}$ and ${}^{57}{Co}$ . The level scheme is compared with large-scale shell-model calculations and cranked Nilsson-Strutinsky calculations.

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Received 29 January 2009

DOI:https://doi.org/10.1103/PhysRevC.80.014321

Authors & Affiliations

E. K. Johansson¹, D. Rudolph¹, I. Ragnarsson², L. -L. Andersson¹, D. A. Torres^3,*, C. Andreoiu^4,†, C. Baktash⁵, M. P. Carpenter⁶, R. J. Charity⁷, C. J. Chiara^7,‡, J. Ekman^1,§, C. Fahlander¹, O. L. Pechenaya^7,∥, W. Reviol⁷, R. du Rietz^1,¶, D. G. Sarantites⁷, D. Seweryniak⁶, L. G. Sobotka⁷, C. H. Yu⁵, and S. Zhu⁶

¹Department of Physics, Lund University, S-22100 Lund, Sweden
²Division of Mathematical Physics, LTH, Lund University, S-22100 Lund, Sweden
³Departamento de Física, Universidad Nacional de Colombia, Bogotá, Colombia
⁴Department of Physics, University of Guelph, Guelph, Ontario, Canada N1G 2W1, Canada
⁵Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
⁶Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
⁷Chemistry Department, Washington University, St. Louis, Missouri 63130, USA

^*Present address: University of the West of Scotland, High Street, Paisley, PA1 2BE Scotland, United Kingdom.
^†Present address: Chemistry Department, Simon Fraser University, 8888 University Drive, Burnaby, BC, V5a 1S6, Canada.
^‡Present address: Nuclear Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439, USA.
^§Present address: Malmö högskola, S-20506 Malmö, Sweden.
^∥Present address: Department of Radiation Oncology, Washington University School of Medicine, St. Louis, Missouri 63130, USA.
^¶Present address: Department of Nuclear Physics, Research School of Physical Science and Engineering, The Australian National University, Canberra, ACT 0200, Australia.

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Vol. 80, Iss. 1 — July 2009

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Physical Review C

covering nuclear physics

Thorough $γ$ -ray and particle decay investigations of ${}^{58}{Ni}$

E. K. Johansson, D. Rudolph, I. Ragnarsson, L. -L. Andersson, D. A. Torres, C. Andreoiu, C. Baktash, M. P. Carpenter, R. J. Charity, C. J. Chiara, J. Ekman, C. Fahlander, O. L. Pechenaya, W. Reviol, R. du Rietz, D. G. Sarantites, D. Seweryniak, L. G. Sobotka, C. H. Yu, and S. Zhu

Phys. Rev. C 80, 014321 – Published 30 July 2009

Abstract

Authors & Affiliations

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Physical Review C

covering nuclear physics

Thorough γ-ray and particle decay investigations of Ni58

E. K. Johansson, D. Rudolph, I. Ragnarsson, L. -L. Andersson, D. A. Torres, C. Andreoiu, C. Baktash, M. P. Carpenter, R. J. Charity, C. J. Chiara, J. Ekman, C. Fahlander, O. L. Pechenaya, W. Reviol, R. du Rietz, D. G. Sarantites, D. Seweryniak, L. G. Sobotka, C. H. Yu, and S. Zhu

Phys. Rev. C 80, 014321 – Published 30 July 2009

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Thorough $γ$ -ray and particle decay investigations of ${}^{58}{Ni}$