Thorough Gamma-ray and Particle Decay Investigations of 58Ni

Summary, in English

The combined data from three fusion-evaporation reaction experiments have been utilized to investigate the semi-magic nucleus Ni-58(28)30. To detect gamma 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 Ni-58 comprising some 340 gamma-ray transitions and include a total of at least 14 discrete particle decays into excited states of the daughter nuclei Fe-54 and Co-57. The level scheme is compared with large-scale shell-model calculations and cranked Nilsson-Strutinsky calculations.

• Author: Emma Johansson; Dirk Rudolph; Ingemar Ragnarsson; Lise-Lotte Andersson; D. A. Torres; C. Andreoiu; C. Baktash; M. P. Carpenter; R. J. Charity; C. J. Chiara; Jörgen Ekman; Claes Fahlander; O. L. Pechenaya; W. Reviol; Rickard du Rietz; D. G. Sarantites; D. Seweryniak; L. G. Sobotka; C. H. Yu; S. Zhu
• Department/s: Nuclear physics; Mathematical Physics
• Publishing year: 2009
• Language: English
• Publication/Series: Physical Review C (Nuclear Physics)
• Volume: 80
• Issue: 1
• Links: http://dx.doi.org/10.1103/PhysRevC.80.014321
• Document type: Journal article
• Publisher: American Physical Society
• Topic: Physical Sciences; Subatomic Physics
• Status: Published
• Project: Nuclear Structure and Exotic Decays: Doubly-magic 56Ni and Semi-magic 58Ni
• Research group: Nuclear Structure
• ISBN/ISSN/Other: ISSN: 0556-2813