Potential of interaction between nuclei and nucleon-density distribution in nuclei

Journal Article · Fri Sep 15 04:00:00 EDT 2006 · Physics of Atomic Nuclei

DOI:https://doi.org/10.1134/S1063778806090067· OSTI ID:21075988

Nesterov, V A ^[1]

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1. National Academy of Sciences of Ukraine, Institute for Nuclear Research (Ukraine)

Nuclear-interaction potentials that are calculated by using Skyrme forces within the extended Thomas-Fermi approximation and Hartree-Fock-Bardeen-Cooper-Schrieffer theory are studied in detail. It is shown that the nuclear component of the potential simulating the interaction between nuclei grows with increasing number of neutrons in colliding isotopes and with increasing diffuseness parameter of the density distribution in interacting nuclei. An increase in the diffuseness parameter of the density distribution in interacting nuclei leads to a decrease in the height of the barrier between the nuclei and to an increase in the depth of the capture well and in the fusion cross section. It is shown that the diffuseness parameter calculated for the nuclear component of the potential at large distance between interacting nuclei by using Skyrme forces exceeds the diffuseness parameter of the nucleon-density distribution in these nuclei by a factor of about 1.5. Realistic values of the diffuseness parameter of nuclear interaction between medium-mass and heavy nuclei fall within the range a {approx} 0.75-0.90 fm.

• OSTI ID: 21075988
• Journal Information: Physics of Atomic Nuclei, Journal Name: Physics of Atomic Nuclei Journal Issue: 9 Vol. 69; ISSN 1063-7788; ISSN PANUEO
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BCS THEORY
CROSS SECTIONS
DENSITY
DISTRIBUTION
HARTREE-FOCK METHOD
HEAVY NUCLEI
ISOTOPES
MASS
NEUTRONS
SKYRME POTENTIAL
THOMAS-FERMI MODEL