Thresholds of ultraperipheral processes

Abstract

Threshold behavior of the cross sections of ultraperipheral nuclear interactions is studied. Production of $e^{+}{e}^{-}$ and ${\mu }^{+}{\mu }^{-}$ pairs as well as ${\pi }^0$ and parapositronium is treated. The values of corresponding energy thresholds are presented and the total cross sections of these processes at the newly constructed NICA and FAIR facilities are estimated.

8 pg

References in corpus (4)

• Electron-Positron Pair Production in Relativistic Heavy Ion Collisions
• Measurement of the exclusive $\gamma \gamma \to {\mu }^{+}{\mu }^{-}$ process in proton--proton collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Double scattering production of two positron-electron pairs in ultraperipheral heavy-ion collisions
• Geometry of ultraperipheral nuclear collisions