The Glauber model and the heavy ion reaction cross section

Details The Glauber model and the heavy ion reaction cross section The Glauber model and the heavy ion reaction cross section

2003-02-13

arxiv.org/abs/nucl-th/0302030v1

Phys.Rev.C67:054607,2003

Physics

Nuclear Physics

Nuclear Theory

RevTeX, 21 pages including 9 Postscript figures, submitted to Phys. Rev. C

Scientific paper

10.1103/PhysRevC.67.054607

We reexamine the Glauber model and calculate the total reaction cross section as a function of energy in the low and intermediate energy range, where many of the corrections in the model, are effective. The most significant effect in this energy range is by the modification of the trajectory due to the Coulomb field. The modification in the trajectory due to nuclear field is also taken into account in a self consistent way. The energy ranges in which particular corrections are effective, are quantified and it is found that when the center of mass energy of the system becomes 30 times the Coulomb barrier, none of the trajectory modification to the Glauber model is really required. The reaction cross sections for light and heavy systems, right from near coulomb barrier to intermediate energies have been calculated. The exact nuclear densities and free nucleon-nucleon (NN) cross sections have been used in the calculations. The center of mass correction which is important for light systems, has also been taken into account. There is an excellent agreement between the calculations with the modified Glauber model and the experimental data. This suggests that the heavy ion reactions in this energy range can be explained by the Glauber model in terms of free NN cross sections without incorporating any medium modification.

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