Systematic study of subbarrier fusion in rare-earth nuclei

Journal Article · Tue Feb 01 04:00:00 EST 1994 · Physical Review, C (Nuclear Physics); (United States)

DOI:https://doi.org/10.1103/PhysRevC.49.1079· OSTI ID:5318431

Balantekin, A B; Bennett, J R ^[1]; Kuyucak, S ^[2]

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1. Physics Department, University of Wisconsin, Madison, Wisconsin 53706 (United States) Institute for Nuclear Theory, University of Washington, Seattle, Washington 98195 (United States)
2. Department of Theoretical Physics, Research School of Physical Sciences, Australian National University, Canberra, Australian Capital Territory 0200 (Australia) Institute for Nuclear Theory, University of Washington, Seattle, Washington 98195 (United States)

The recent accurate measurements of fusion cross sections at subbarrier energies have enabled extraction of barrier distributions which could provide a novel test for collective models. We carry out a systematic study of subbarrier fusion in rare-earth nuclei using a scheme which incorporates the interacting boson model for nuclear structure effects. The existing data on vibrational and rotational nuclei are fitted with a consistent set of parameters which are then used to predict the fusion cross sections and distribution of barriers in transitional nuclei. Contrary to vibrational and rotational nuclei where the cross sections increase smoothly with increasing deformation or mass number, transitional nuclei exhibit sharp changes in the barrier distribution due to shape-phase transitions. An accurate measurement of fusion cross sections for Pt and Os nuclei could thus provide a sensitive test for competing models in this region.

• OSTI ID: 5318431
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 49:2; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

663120 -- Nuclear Structure Models & Methods-- (1992-)
663300 -- Nuclear Reactions & Scattering
General-- (1992-)
663450* -- Heavy-Ion-Induced Reactions & Scattering-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
COLLECTIVE MODEL
CROSS SECTIONS
DATA
ENERGY LEVELS
EXCITED STATES
HEAVY ION FUSION REACTIONS
INFORMATION
INTERACTING BOSON MODEL
INTERMEDIATE MASS NUCLEI
MATHEMATICAL MODELS
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEI
NUMERICAL DATA
RARE EARTH NUCLEI
ROTATIONAL STATES
SHELL MODELS
THEORETICAL DATA
VIBRATIONAL STATES