Nuclear Collisions and Factorization

Total cross sections for nucleon-α and αα collisions are calculated for $862776$ GeV², with simple assumptions regarding nucleon-nucleon elastic collisions, are also given. For $100<s<2776$ GeV², where NN data exist, the Glauber-approximation results differ from the factorization predictions by {~} 4-10%. At higher energies the factorization predictions are approached slowly.