Ultrarelativistic polarized positron jets via collision of electron and ultraintense laser beams

Abstract

Relativistic spin-polarized positron beams are indispensable for future electron-positron colliders to test modern high-energy physics theory with high precision. However, present techniques require very large scale facilities for those experiments. We put forward a novel efficient way for generating ultrarelativistic polarized positron beams employing currently available laser fields. For this purpose the generation of polarized positrons via multiphoton Breit-Wheeler pair production and the associated spin dynamics in single-shot interaction of an ultraintense laser pulse with an ultrarelativistic electron beam is investigated in the quantum radiation-dominated regime. A specifically tailored small ellipticity of the laser field is shown to promote splitting of the polarized particles along the minor axis of laser polarization into two oppositely polarized beams. In spite of radiative de-polarization, a dense positron beam with up to about 90\% polarization can be generated in tens of femtoseconds. The method may eventually usher high-energy physics studies into smaller-scale laser laboratories.

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Cited by in corpus (32)

• Advances in QED with intense background fields
• Charged particle motion and radiation in strong electromagnetic fields
• 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
• Loops and polarization in strong-field QED
• Polarized QED cascades
• Spin-polarization effects of an ultrarelativistic electron beam in an ultraintense two-color laser pulse
• Dense Polarized Positrons from Laser-Irradiated Foil Targets in the QED Regime
• Retrieving transient magnetic fields of ultrarelativistic laser plasma via ejected electron polarization
• High-energy gamma-photon polarization in nonlinear Breit-Wheeler pair production and gamma-polarimetry
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• Electron spin- and photon polarization-resolved probabilities of strong-field QED processes
• Generation of polarized particle beams at relativistic laser intensities
• Relativistic electron spin dynamics in a strong unipolar laser field
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• Fully polarized nonlinear Breit-Wheeler pair production in pulsed plane waves
• Onset of electron-seeded cascades in generic electromagnetic fields
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• Numerical approach to the semiclassical method of pair production for arbitrary spins and photon polarization
• Helicity transfer in strong laser fields via the electron anomalous magnetic moment
• Stochasticity in radiative polarization of ultrarelativistic electrons in an ultrastrong laser pulse
• Generation of High-Density High-Polarization Positrons via Single-Shot Strong Laser-Foil Interaction
• Spin and polarization effects on the nonlinear Breit-Wheeler pair production in laser-plasma interaction
• Strong signature of one-loop self-energy in polarization resolved nonlinear Compton scattering
• Laser-driven lepton polarization in the quantum radiation-dominated reflection regime
• Generation of Ultrarelativistic Vortex Leptons with Large Orbital Angular Momenta
• Generation of polarized positron beams via collisions of ultrarelativistic electron beams
• High-order corrections to the radiation-free dynamics of an electron in the strongly radiation-dominated regime
• Generation of arbitrarily polarized muon pairs via polarized $e^{-}{e}^{+}$ collision
• The effect of the electron's spin magnetic moment on quantum radiation in strong electromagnetic fields
• Intrinsic Nonlocality of Spin- and Polarization-Resolved Probabilities in Strong-Field Quantum Electrodynamics