{sup 6}He+{sup 12}C elastic scattering using a microscopic optical potential

The {sup 6}He+{sup 12}C elastic scattering data at beam energies of 3,38.3, and 41.6 MeV/nucleon are studied utilizing the microscopic optical potentials obtained by a double-folding procedure and also by using those inherent in the high-energy approximation. The calculated optical potentials are ba...

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Bibliographic Details
Published in:Physical review. C, Nuclear physics Nuclear physics, 2010-08, Vol.82 (2)
Main Authors: Lukyanov, V. K., Zemlyanaya, E. V., Lukyanov, K. V., Kadrev, D. N., Antonov, A. N., Gaidarov, M. K.
Format: Article
Language:English
Subjects:
APPROXIMATIONS
ATOM COLLISIONS
ATOM-ATOM COLLISIONS
BARYONS
BEAMS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CALCULATION METHODS
CARBON 12
CARBON ISOTOPES
COLLISIONS
CROSS SECTIONS
DIMENSIONLESS NUMBERS
DISTRIBUTION
ELASTIC SCATTERING
ELECTRONS
ELEMENTARY PARTICLES
ENERGY RANGE
EVEN-EVEN NUCLEI
FERMIONS
FORM FACTORS
HADRONS
HELIUM 6
HELIUM ISOTOPES
ISOTOPES
LEPTONS
LIGHT NUCLEI
MEV RANGE
MILLISECONDS LIVING RADIOISOTOPES
NEUTRONS
NUCLEAR PHYSICS AND RADIATION PHYSICS
NUCLEI
NUCLEONS
PARTICLE PROPERTIES
PROTON DENSITY
RADIOISOTOPES
SCATTERING
STABLE ISOTOPES
SURFACES
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Summary:The {sup 6}He+{sup 12}C elastic scattering data at beam energies of 3,38.3, and 41.6 MeV/nucleon are studied utilizing the microscopic optical potentials obtained by a double-folding procedure and also by using those inherent in the high-energy approximation. The calculated optical potentials are based on the neutron and proton density distributions of colliding nuclei established in an appropriate model for {sup 6}He and obtained from the electron scattering form factors for {sup 12}C. The depths of the real and imaginary parts of the microscopic optical potentials are considered as fitting parameters. At low energy the volume optical potentials reproduce sufficiently well the experimental data. At higher energies, generally, additional surface terms having the form of a derivative of the imaginary part of the microscopic optical potential are needed. The problem of ambiguity of adjusted optical potentials is resolved requiring the respective volume integrals to obey the determined dependence on the collision energy. Estimations of the Pauli blocking effects on the optical potentials and cross sections are also given and discussed. Conclusions on the role of the aforesaid effects and on the mechanism of the considered processes are made.
ISSN:0556-2813
1089-490X
DOI:10.1103/PHYSREVC.82.024604