Strong-field effect for the process of photon emission in collisions of relativistic nuclei at RHIC and LHC

I. F. Ginzburg, U. D. Jentschura, V. G. Serbo

Research output: Contribution to journalArticle

Abstract

Virtual Delbrück scattering in heavy-ion collisions contributes to the emission of photons. Specifically, the elastic scattering of an equivalent photon emitted by a nucleus in the Coulomb field of an incoming nucleus can lead to the emission of a photon in the collision of ultra-relativistic nuclei Z1Z2 → Z1Z2γ. The discussed process has no infrared divergence. The total cross section obtained is 14 barn for the Au-Au collisions at the RHIC collider and 50 barn for the Pb-Pb collisions at the LHC collider. These cross sections are considerably larger than those for ordinary nuclear bremsstrahlung in the same photon energy range.

Original languageEnglish
Pages (from-to)297-301
Number of pages5
JournalNuclear Physics B - Proceedings Supplements
Volume184
Issue numberC
DOIs
Publication statusPublished - Nov 1 2008

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Nuclear and High Energy Physics

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