- V. Paar (Univ. Zagreb) - Further evidence on shape
coexistence in As-72
- Accession Number
- 177VY-0013
- Document Delivery
- 177VY: Document Delivery available
- Authors
- Sohler
D. Podolyak
Z. Dombradi
Z. Gulyas
J. Algora
A. Brant
S. Krstic
V. Paar
V.
- Title
- Further evidence on shape coexistence in As-72
- Source
- Physical Review C-Nuclear Physics. 59(3):1328-1333, 1999 Mar.
- Abbreviated Source
- Phys. Rev. C-Nucl. Phys. 59(3):1328-1333, 1999 Mar.
- Copyright Publisher
- AMERICAN PHYSICAL SOC, ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
- ISSN
- 0556-2813
- KeyWords Plus
- Odd
nuclei. Model.
States.
Bands.
Collectivity.
Isotopes.
Limit.
Br-74.
- Abstract
- The As-72 nucleus was studied via the (alpha,n gamma) reaction at 14.2 MeV
bombarding energy, Single gamma-, gamma gamma-coincidence, and internal
conversion electron spectra were measured with Ge(HP) gamma-ray and
superconducting magnetic lens plus Si(Li) electron spectrometers. On the
basis of the internal conversion coefficients of As-72, transitions,
parities of the medium-spin levels up to 1.4 MeV excitation energy were
determined, resulting in unambiguous parities also for the heads of the
bands observed previously. The states observed were assigned to
proton-neutron multiplets on the basis of their decay properties. The energy
splittings of the observed multiplets are in accordance with the prediction
of the previous interacting boson-fermion-fermion model (IBFFM) calculations
using a transitional core lying between the vibrational SU(5) and gamma-soft
O(6) limits, except that of the pi g(9/2)vg(9/2) multiplet, which was
described using the deformed SU(3) core in the present IBFFM calculations.
Such a core structure is in accordance with previous particle-rotor and
Hartree-Fock-Bogoliubov calculations. [S0556-2813(99)03903-5]. [References:
36]
- Language
- English
- Publication Type
- Article
- Subset
- Current Contents(R)/Physical, Chemical & Earth Sciences.
- CC Categories
- Physics in Current Contents(R)/Physical, Chemical & Earth Sciences.
- Entry Week
- 1999 week 16
- Reprint Address
- Reprint available from: Sohler D. Inst Nucl Res, POB 51, H-4001 Debrecen,
Hungary.
- Institution
- Reprint available from:
Sohler D
Inst Nucl Res
POB 51
H-4001 Debrecen
Hungary
Inst Nucl Res
H-4001 Debrecen
Hungary
Univ Zagreb, Fac Sci, Dept Phys
Zagreb 10000
Croatia