Revisiting unitarity corrections for electromagnetic processes in collisions of relativistic nuclei

U. D. Jentschura, K. Hencken, V. G. Serbo

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11 Citations (Scopus)


Unitarity corrections to several electromagnetic processes in collisions of relativistic heavy nuclei are considered. They are due to the unitarity requirement for the S-matrix and correspond to the exchange of a light-by-light scattering block between colliding nuclei. We obtain improved results for the corrections to e +∈ e - and μ + μ - pair production as well as new results for unitarity corrections to the production of photons via virtual Compton and virtual Delbrück scattering. These corrections can be numerically large; e.g., the μ + μ - pair production cross section is reduced by about 50% and nuclear bremsstrahlung by about 15÷20%.

Original languageEnglish
Pages (from-to)281-289
Number of pages9
JournalEuropean Physical Journal C
Issue number2
Publication statusPublished - Nov 1 2008


ASJC Scopus subject areas

  • Engineering (miscellaneous)
  • Physics and Astronomy (miscellaneous)

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