Strong signature of one-loop self-energy in polarization resolved nonlinear Compton scattering

Abstract

The polarization dynamics of electrons including multiple nonlinear Compton scattering during the interaction of a circularly-polarized ultraintense laser pulse with a counterpropagating ultrarelativistic electron beam is investigated. While electron polarization emerges mostly due to spin-flips at photon emissions, there is a non-radiative contribution to the polarization which stems from the one-loop QED radiative corrections to the self-energy, which admits of a simple physical model. We put forward a method to single out the non-radiative contribution to the polarization, employing the reflection regime of the interaction when the radiation reaction is significant. The polarization of electrons that penetrate in the forward direction through a colliding laser is shown to be dominated by the loop effect, while the reflected electrons are mostly polarized by spin-flips at photon emissions. We confirm this effect by quantum Monte Carlo simulations considering the helicity transfer from the laser field to the electrons, taking into account the opposite sign of the polarizations induced by the non-radiative loop effect and radiative spin-flip. Our Monte Carlo simulations show a polarization signal as high as $\gtrsim 10\%$ from the non-radiative effect, amenable for experimental detection with current technology.

References in corpus (33)

• Extremely high-intensity laser interactions with fundamental quantum systems
• Femtosecond x rays from laser-plasma accelerators
• Modelling Gamma Ray Emission and Pair Production in High-Intensity Laser-Matter Interactions
• Experimental evidence of radiation reaction in the collision of a high-intensity laser pulse with a laser-wakefield accelerated electron beam
• Experimental signatures of the quantum nature of radiation reaction in the field of an ultra-intense laser
• QED cascades induced by circularly polarized laser fields
• Charged particle motion and radiation in strong electromagnetic fields
• Extended PIC schemes for physics in ultra-strong laser fields: review and developments
• A table-top laser-based source of femtosecond, collimated, ultra-relativistic positron beams
• Strong signatures of radiation reaction below the radiation dominated regime
• Ultrarelativistic electron beam polarization in single-shot interaction with an ultraintense laser pulse
• On the Prospect of Studying Nonperturbative QED with Beam-Beam Collisions
• Spin polarization of electrons by ultraintense lasers
• Polarized positron beams via intense two-color laser pulses
• Theory of Radiative Electron Polarization in Strong Laser Fields
• Polarized ultrashort brilliant multi-GeV $\gamma$-rays via single-shot laser-electron interaction
• Production of Highly Polarized Positron Beams via Helicity Transfer from Polarized Electrons in a Strong Laser Field
• Ultrafast Polarization of an Electron Beam in an Intense Bi-chromatic Laser Field
• Complete description of polarization effects in e^+e^- pair production by a photon in the field of a strong laser wave
• Ultrarelativistic polarized positron jets via collision of electron and ultraintense laser beams
• Quantum electron self-interaction in a strong laser field
• Attosecond gamma-ray pulses via nonlinear Compton scattering in the radiation dominated regime
• Loops and polarization in strong-field QED
• Spin-polarization effects of an ultrarelativistic electron beam in an ultraintense two-color laser pulse
• Electron spin- and photon polarization-resolved probabilities of strong-field QED processes
• Loop spin effects in intense background fields
• Electron (positron) beam polarization by Compton scattering on circularly polarized laser photons
• Precision Electron-Beam Polarimetry using Compton Scattering at 1 GeV
• First-order strong-field QED processes including the damping of particles states
• Helicity transfer in strong laser fields via the electron anomalous magnetic moment
• Quantum Reflection above the Classical Radiation-reaction Barrier in the QED Regime
• Resummation of quantum radiation reaction and induced polarization
• Polarization of high-energy electrons traversing a laser beam

Cited by in corpus (4)

• Laser-driven lepton polarization in the quantum radiation-dominated reflection regime
• Angular momentum dynamics of vortex particles in accelerators
• Two-dimensional simulation of the spin-flip in the Kapitza-Dirac effect
• Intrinsic Nonlocality of Spin- and Polarization-Resolved Probabilities in Strong-Field Quantum Electrodynamics