sup 12 C+ sup 12 C elastic scattering analysis above E / A =6 MeV using deep real potentials

Journal Article · Sun Apr 01 00:00:00 EST 1990 · Physical Review, C (Nuclear Physics); (USA)

DOI:https://doi.org/10.1103/PhysRevC.41.1520· OSTI ID:7186971

Brandan, M E; Rodriguez-Villafuerte, M; Ayala, A ^[1]

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1. Universidad Nacional Autonoma de Mexico, Apartado Postal 20-364, Mexico 01000 Distrito Federal, Mexico (MX)

We present phenomenological and folding optical-model descriptions of {sup 12}C+{sup 12}C elastic scattering between 6 and 120 MeV/nucleon. The potentials have a deep real part, a weakly absorbing imaginary part, and are energy dependent. The folding-model real potential is calculated from the energy- and density-dependent effective interaction DDM3Y. It requires renormalizations of about 1.1 below 10 MeV/nucleon, and close to unity above. The phenomenological real potential is about 300 MeV at the center for the lower energies, slowly reducing to 120 MeV for the highest energies. The discrete ambiguities for the real part found in the analysis at energies below 10 MeV/nucleon are resolved by demanding consistency with the higher energy results. The volume integrals for the folding-model and phenomenological potentials agree and display a smooth and slow energy dependence that is consistent with simple dispersion-relation predictions. The values for the total reaction cross sections show the transparency effect expected from microscopic calculations. A possible extension of this description towards lower energies is discussed.

• OSTI ID: 7186971
• Journal Information: Physical Review, C (Nuclear Physics); (USA), Vol. 41:4; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CARBON 12 REACTIONS
ELASTIC SCATTERING
CARBON 12 TARGET
ANGULAR DISTRIBUTION
EXCITATION FUNCTIONS
GEV RANGE 01-10
MEV RANGE 10-100
OPTICAL MODELS
TOTAL CROSS SECTIONS
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DISTRIBUTION
ENERGY RANGE
FUNCTIONS
GEV RANGE
HEAVY ION REACTIONS
MEV RANGE
NUCLEAR REACTIONS
SCATTERING
TARGETS
653003* - Nuclear Theory- Nuclear Reactions & Scattering