Abstract
Excited states of As-68 nucleus were populated through the C-12(Ni-58,pn) reaction and investigated by in-beam gamma-spectroscopic methods. The NORDBALL detector array equipped with charged particle and neutron detectors was used to detect the evaporated particles and gamma-rays. The level scheme of As-68 was constructed on the basis of gamma gamma-coincidence relations up to 6 MeV excitation energy and J(pi) = (15(+)). The structure of the nucleus is discussed in the framework of the interacting boson-fermion-fermion model. The states below 2.3 MeV are described as members of proton-neutron-phonon multiplets. (C) 1998 Elsevier Science B.V.
Original language | English |
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Pages (from-to) | 141-161 |
Journal | Nuclear Physics, Section A |
Volume | 644 |
Issue number | 3 |
DOIs | |
Publication status | Published - 1998 |
Externally published | Yes |
Subject classification (UKÄ)
- Subatomic Physics
Free keywords
- 15 Ge+BGO anti-Compton spectrometers
- enriched targets
- pi
- J
- As-68 deduced levels
- angular distribution ratios
- particle coin
- gamma gamma
- I gamma
- measured E gamma
- pn)
- C-12(Ni-58
- E = 261 MeV
- 30 BaF2
- detectors
- 21 element 4 pi Si charged particle detector array
- 11
- element 1 pi neutron wall
- interacting boson-fermion-fermion model
- calculations