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

Denis Carrier; Lawrence M. Krauss

doi:10.1103/PhysRevC.38.1225

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

Denis Carrier, Lawrence M. Krauss

Research output: Contribution to journal › Article › peer-review

Abstract

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 language	English (US)
Pages (from-to)	1225-1228
Number of pages	4
Journal	Physical Review C
Volume	38
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevC.38.1225
State	Published - 1988
Externally published	Yes

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1103/PhysRevC.38.1225

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abstract = "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 f{\"u}r Schwerionenforschung (GSI).",

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AB - 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).

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

Abstract

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