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Effect of density-dependent nucleon-nucleon cross-section on elastic scattering
Faculty
Science
Year:
2004
Type of Publication:
Article
Pages:
221-229
Authors:
HASSAN, MYM, Ghazal, AS, El-Din, MSMN
DOI:
10.1140/epja/i2003-10101-8
Journal:
EUROPEAN PHYSICAL JOURNAL A SPRINGER-VERLAG
Volume:
19
Research Area:
Physics
ISSN
ISI:000188515800009
Keywords :
Effect , density-dependent nucleon-nucleon cross-section , elastic scattering
Abstract:
A linear form of density-dependent total nucleon-nucleon (NN) cross-section that depends on the coordinates of the projectile and target is applied in the Glauber phase shift formula. The only free parameter in these calculations is the density-dependent parameter ``beta{''}, which is adjusted to obtain an agreement between the calculated angular distribution of the elastic-scattering cross-section and the corresponding experimental one. The elastic scattering of the C-12 ion on the C-12 ion target has been studied at incident energies of 300, 360, 1016, 1441 and 2400 MeV. The total reaction cross-section ``sigma(r){''} is also calculated with the obtained value of ``beta{''} for the same reactions. The obtained values of ``sigma(r){''} are compared with those obtained from the optical-model analysis as well as those of the experimental value. Nuclear transparency effects are also discussed. Generally, the density-dependent NN cross-section improves the calculated results.
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