Production of high energy particles in laser and Coulomb fields and e^+e^- antenna

TL;DR

This paper demonstrates that strong laser and Coulomb fields can generate e^{+}e^{-} pairs which subsequently collide at high energies, producing high-energy photons and muons more efficiently than traditional methods.

Contribution

It introduces the novel concept that electron-positron pairs created in combined laser and Coulomb fields can collide at high energies, leading to new particle production mechanisms.

Findings

High probability of e^{+}e^{-} collisions after laser oscillations.

Production of high-energy photons and muons exceeds traditional methods.

Collisions can accelerate leptons to higher energies.

Abstract

A strong laser field and the Coulomb field of a nucleus can produce e^{+}e^{-} pairs. It is shown for the first time that there is a large probability that electrons and positrons created in this process collide after one or several oscillations of the laser field. These collisions can take place at high energy resulting in several phenomena. The quasielastic collision e^{+}e^{-} -> e^{+}e^{-} allows acceleration of leptons in the laser field to higher energies. The inelastic collisions allow production of high energy photons e^{+}e^{-}-> 2 gamma and muons, e^{+}e^{-} -> mu^{+}mu^{-}. The yield of high-energy photons and muons produced via this mechanism exceeds exponentially their production through conventional direct creation in laser and Coulomb fields. A relation of the phenomena considered with the antenna-mechanism of multiphoton absorption in atoms is discussed.