标题： Glauber模型和重离子反应截面 显示英文标题

标题： The Glauber model and the heavy ion reaction cross section

摘要： 我们重新审视了Glauber模型，并计算了在低能和中能范围内的总反应截面作为能量的函数，在这个能量范围内，模型中的许多修正都是有效的。 在这个能量范围内，最显著的影响是由于库仑场导致的轨迹修改。 由于核场导致的轨迹修改也以自洽的方式被考虑在内。 特定修正起作用的能量范围已被量化，并发现当系统的质心能量变为库仑势垒的30倍时，Glauber模型的轨迹修改实际上不再需要。 从接近库仑势垒到中能范围内的轻质量和重质量系统的反应截面已经计算出来。 计算中使用了精确的核密度和自由核子-核子（NN）截面。 对于轻质量系统重要的质心校正也被考虑在内。 修改后的Glauber模型计算结果与实验数据之间有很好的一致性。 这表明，在这个能量范围内的重离子反应可以通过Glauber模型用自由NN截面来解释，而无需包含任何介质修正。 显示英文摘要

摘要： 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.