Microscopic optical model calculations of 4He, 12C-nucleus absorption cross sections.
Calculations of absorption cross sections using a microscopic first-order optical potential for heavy-ion scattering are compared with experiments. In-medium nucleon-nucleon (NN) cross sections were used to calculate the two-body scattering amplitude. A medium-modified first-order optical potential was obtained for heavy-ion scattering using the in-medium two-body scattering amplitude. A partial wave expansion of the Lippmann-Schwinger equation in momentum space was used to calculate the absorption cross sections for various systems. The results are presented for the absorption cross sections for 4He-nucleus and 12C-nucleus scattering systems and are compared with the experimental values in the energy range 18-83A MeV. The use of the in-medium NN cross sections is found to result in significant reduction of the free space absorption cross sections in agreement with experiment.
Dubey
R R
RR
Old Dominion University, Norfolk, VA 23529, USA.
Khandelwal
G S
GS
Cucinotta
F A
FA
Wilson
J W
JW
D002244:Carbon; D004601:Elementary Particles; D020450:Heavy Ions; D006371:Helium; D008433:Mathematics; D008962:Models, Theoretical; D009686:Nuclear Physics; D055095:Optics and Photonics; D012542:Scattering, Radiation
D006371:Helium; D002244:Carbon