Gamma-ray beams with large orbital angular momentum via nonlinear Compton scattering with radiation reaction

Abstract

Gamma-ray beams with large angular momentum are a very valuable tool to study astrophysical phenomena in a laboratory. We investigate generation of well-collimated $\gamma$-ray beams with a very large orbital angular momentum using nonlinear Compton scattering of a strong laser pulse of twisted photons at ultra-relativistic electrons. Angular momentum conservation among absorbed laser photons, quantum radiation and electrons are numerically demonstrated in the quantum radiation dominated regime. We point out that the angular momentum of the absorbed laser photons is not solely transferred to the emitted $\gamma$-photons, but due to radiation reaction shared between the $\gamma$-photons and interacting electrons. The efficiency of the angular momentum transfer is optimized with respect to the laser and electron beam parameters. The accompanying process of electron-positron pair production is furthermore shown to enhance the orbital angular momentum gained by the $\gamma$-ray beam.

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Cited by in corpus (20)

• Semiclassical probability of radiation of twisted photons in the ultrarelativistic limit
• Impact of the laser spatio-temporal shape on Breit-Wheeler pair production
• Electron spin- and photon polarization-resolved probabilities of strong-field QED processes
• Generalized excitation of atomic multipole transitions by twisted light modes
• Vortex $\gamma$ photon generation via spin-to-orbital angular momentum transfer in nonlinear Compton scattering
• Stochasticity in radiative polarization of ultrarelativistic electrons in an ultrastrong laser pulse
• Probability of radiation of twisted photons by axially symmetric bunches of particles
• Advances in laser-plasma interactions using intense vortex laser beams
• Nondipole Coulomb sub-barrier ionization dynamics and photon momentum sharing
• Efficient generation of axial magnetic field by multiple laser beams with twisted pointing directions
• Planar wiggler as a tool for generating hard twisted photons
• Generation of Ultrarelativistic Vortex Leptons with Large Orbital Angular Momenta
• Accelerated-Cherenkov radiation and signatures of radiation reaction
• Generation of bright collimated vortex $\gamma$-ray via laser driven cone-fan target
• Guided propagation of extremely intense lasers in plasma via ion motion
• Plasma acceleration of polarized particle beams
• A Platform for All-optical Thomson/ Compton Scattering with Versatile Parameters
• Large Angular Momentum
• Generation of Twisted Gamma-Rays via Two-Photon Transition
• Universal features of high-energy scattering of Laguerre-Gaussian states