e⁺e^- PAIR PRODUCTION IN ULTRARELATIVISTIC HEAVY-ION COLLISIONS AT INTERMEDIATE IMPACT PARAMETERS
Lee R.N., Milstein A.I.

Received: October 4, 2006

PACS: 12.20.Ds, 95.30.Cq

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Using the semiclassical Green's function in the Coulomb field, we analyze the probabilities of single and multiple e⁺e^- pair production at a fixed impact parameter b between colliding ultrarelativistic heavy nuclei. We perform calculations in the Born approximation with respect to the parameter Z_Bα and exactly in Z_Aα, where Z_A and Z_B are the charge numbers of the corresponding nuclei. We also obtain the approximate formulas for the probabilities valid for Z_Aα, .