HIGHLIGHTS
- who: Parisi Giorgio from the Guido Altarelli and Franco Buccella had to evaluate the cross section for the process e+ + e- → e+ + e- + γ, paying attention to the one-loop infrared divergences in the process e+ + e- → e+ + e- The formulae they wrote in their first attempt were correct. Unfortunately, for very small transfer momentum of the γ the computer was nearly computing, and, due to rounding effects in floating point arithmetics, the output was extraordinarily large. This first attempt produced an extremely large cross section that left everybody puzzled: however they were fast enough to understand the reason . . .
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