Higher-order pair-conversion peaks in heavy-ion collisions

Denis Carrier, Lawrence Krauss

Research output: Contribution to journalArticle


We analyze quantum electrodynamic pair creation from vibrating nuclear quasimolecules which may occur in collisions of heavy ions. We find that higher-order processes, which can be phenomenologically relevant for sufficiently long lived systems, can result in coincident narrow peaks even for subcritical systems. The Z dependence of the energy of the peaks can be much softer than that predicted for positrons from sparking of the vacuum. Our results may be relevant to peaks which have been observed at the Gesellschaft für Schwerionenforschung (GSI).

Original languageEnglish (US)
Pages (from-to)1225-1228
Number of pages4
JournalPhysical Review C
Issue number3
Publication statusPublished - 1988
Externally publishedYes


ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Nuclear and High Energy Physics

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