2023/08/03 by Gianluca Degli Esposti, Greger Torgrimsson, Esposti, Gianluca Degli +1 · 4 citations
Engineering · Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High Energy Physics - Theory (hep-th) #Particle Accelerators and Free-Electron Lasers #Particle accelerators and beam dynamics #Quantum and Classical Electrodynamics
paper · pdf · doi:10.48550/arxiv.2308.01659
openalex publication_date 2023/08/03 · openalex created_date 2023/08/18 · openalex updated_date 2026/08/01
We calculate the momentum spectrum of electron-positron pairs created via the Schwinger mechanism by a class of four-dimensional electromagnetic fields called e-dipole fields. To the best of our knowledge, this is the first time the momentum spectrum has been calculated for 4D, exact solutions to Maxwell's equations. Moreover, these solutions give fields that are optimally focused, and are hence particularly relevant for future experiments. To achieve this we have developed a worldline instanton formalism where we separate the process into a formation and an acceleration region.