Speaker
Dr
Greger Torgrimsson
(Theoretisch-Physikalisches Institut Friedrich-Schiller-Universität Jena; Helmholtz Institute Jena)
Description
High-intensity lasers currently attract a great deal of interest due to the prospects of using them to study unexplored regimes of fundamental physics. Trident pair production is a basic process in this field, where an electron collides with a laser and produces an electron-positron pair. One part of this is a two-step process where the initial electron emits a real, on-shell photon that subsequently decays into an electron-positron pair, and the rest is referred to as a one-step process. We have [1] studied the split between these one- and two-step processes using lightfront quantization, motivated by the facts that in this formalism all particles are on-shell and the Hamiltonian has instantaneous terms. Apart from providing new insights into trident, this formalism has also allowed us to calculate important terms that have previously been neglected.
Reference
[1] V. Dinu and G. Torgrimsson,
``Trident pair production in plane waves: Coherence, exchange, and spacetime inhomogeneity'',
Phys. Rev. D 97 (2018) 036021
Primary authors
Dr
Greger Torgrimsson
(Theoretisch-Physikalisches Institut Friedrich-Schiller-Universität Jena; Helmholtz Institute Jena)
Dr
Victor Dinu
(Department of Physics, University of Bucharest)
