Complete Glauber calculations of reaction and interaction cross sections for light-ion collisions

The differences of the interaction and reaction cross sections for collisions between relativistic light ions of mass number in the range of A < 40 are calculated on the basis of Glauber theory. In the optical approximation of Glauber theory, these differences are about 1% of the interaction cross sections. Upon taking into account all diagrams in Glauber theory, these differences reach 3 to 4% of the interaction cross section.