Collective and broken pair states of Ga-65,Ga-67

Summary, in English

Excited states of Ga-65 and Ga-67 nuclei were populated through the C-12(Ni-58,alpha p) and C-12(Ni-58,3p) reactions, respectively, and investigated by in-beam gamma-ray spectroscopic methods. The NORDBALL array equipped with a charged particle ball and 11 neutron detectors was used to detect the evaporated particles and gamma rays. The level schemes of Ga-6.5.67 were constructed On the basis of gamma gamma-coincidence relations up to 8.6 and 10,MeV excitation energy, and I-pi=27/2 and 33/2(+) spin and parity, respectively. The structure of Ga-65.67 nuclei was described in the interacting boson-fermion plus broken pair modal, including quasiproton, quasiproton-two-quasineutron, and three-quasiproton fermion configurations in the boson-fermion basis states. Most of the states were: assigned to quasiparticle + phonon and their quasiparticle configurations on the basis of their electromagnetic decay properties, [S0556-2813(99)02004-X].

• Author: I Danko; D Sohler; Z Dombradi; S Brant; V Krstic; Joakim Cederkäll; M Lipoglavsek; M Palacz; J Persson; A Atac; C Fahlander; H Grawe; A Johnson; A Kerek; W Klamra; J Kownacki; A Likar; LO Norlin; J Nyberg; V Paar; R Schubart; D Seweryniak; D Vretenar; G de Angelis; P Bednarczyk; D Foltescu; D Jerrestam; S Juutinen; E Makela; BM Nyako; M de Poli; HA Roth; T Shizuma; O Skeppstedt; G Sletten; S Tormanen
• Publishing year: 1999
• Language: English
• Pages: 1956-1974
• Publication/Series: Physical Review C - Nuclear Physics
• Volume: 59
• Issue: 4
• Links: http://dx.doi.org/10.1103/PhysRevC.59.1956
• Document type: Journal article
• Publisher: American Physical Society
• Topic: Subatomic Physics
• Status: Published
• ISBN/ISSN/Other: ISSN: 0556-2813