Dynamical nucleus-nucleus potential at short distances

Journal Article · Thu Apr 15 00:00:00 EDT 2010 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.81.044602· OSTI ID:21388933

Yongying, Jiang; Ning, Wang ^[1]; Zhuxia, Li ^[2]; Scheid, Werner ^[3]

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1. Department of Physics, Guangxi Normal University, Guilin 541004 (China)
2. China Institute of Atomic Energy, Beijing 102413 (China)
3. Institute for Theoretical Physics, Justus-Liebig-University, D-35392 Giessen (Germany)

The dynamical nucleus-nucleus potentials for fusion reactions {sup 40}Ca+{sup 40}Ca, {sup 48}Ca+{sup 208}Pb, and {sup 126}Sn+{sup 130}Te are studied with the improved quantum molecular dynamics model together with the extended Thomas-Fermi approximation for the kinetic energies of nuclei. The obtained fusion barrier for {sup 40}Ca+{sup 40}Ca is in good agreement with the extracted fusion barrier from the measured fusion excitation function, and the depths of the fusion pockets are close to the results of time-dependent Hartree-Fock calculations. The energy dependence of the fusion barrier is also investigated. The fusion pocket becomes shallow for a heavy fusion system and almost disappears for heavy nearly symmetric systems, and the obtained potential at short distances is higher than the adiabatic potential.

• OSTI ID: 21388933
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 81, Issue 4; Other Information: DOI: 10.1103/PhysRevC.81.044602; (c) 2010 The American Physical Society; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CALCIUM 40
CALCIUM 48
ENERGY DEPENDENCE
EXCITATION FUNCTIONS
HARTREE-FOCK METHOD
KINETIC ENERGY
LEAD 208
MOLECULAR DYNAMICS METHOD
NUCLEON-NUCLEON POTENTIAL
SYMMETRY
TELLURIUM 130
THERMONUCLEAR REACTIONS
THOMAS-FERMI MODEL
TIME DEPENDENCE
TIN 126
ALKALINE EARTH ISOTOPES
APPROXIMATIONS
ATOMIC MODELS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CALCIUM ISOTOPES
CALCULATION METHODS
CROSS SECTIONS
DIFFERENTIAL CROSS SECTIONS
ENERGY
EVEN-EVEN NUCLEI
FUNCTIONS
HEAVY NUCLEI
INTERMEDIATE MASS NUCLEI
ISOTOPES
LEAD ISOTOPES
LIGHT NUCLEI
MATHEMATICAL MODELS
NUCLEAR REACTIONS
NUCLEI
NUCLEOSYNTHESIS
POTENTIALS
RADIOISOTOPES
STABLE ISOTOPES
SYNTHESIS
TELLURIUM ISOTOPES
TIN ISOTOPES
YEARS LIVING RADIOISOTOPES