Heavy ion beam lifetimes at relativistic and ultrarelativistic colliders
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The effects of higher order corrections in ultra-relativistic nuclear collisions are considered. It is found that higher order contributions are small at low energy, large at intermediate energy and small again at very high energy. An explanation for this effect is given. This means that the Weizsacker-Williams formula is a good approximation to use in calculating cross sections and beam lifetimes at energies relevant to RHIC and LHC.
10 pages, 2 tables, 4 figures
10 pages, 2 tables, 4 figures