Onset of electron-seeded cascades in generic electromagnetic fields
A. A. Mironov, E. G. Gelfer, A. M. Fedotov
Abstract
The authors derive a general expression for the behavior of the energy and dynamical quantum parameter of an initially slow particle in an arbitrary electromagnetic field of electric type through short-time expansion combined with ultrarelativistic approximation. These results allow the generalization of the effective threshold condition of QED cascade onset.
Topics & Concepts
CascadePhysicsElectronPhotonElectromagnetic fieldCollimated lightLaserQuantum electrodynamicsField (mathematics)Pulse (music)Computational physicsNuclear physicsAtomic physicsOpticsQuantum mechanicsDetectorChemistryMathematicsChromatographyPure mathematicsLaser-Plasma Interactions and DiagnosticsLaser-Matter Interactions and ApplicationsParticle Accelerators and Free-Electron Lasers