Letter of Intent for the LUXE Experiment

Abstract

This Letter of Intent describes LUXE (Laser Und XFEL Experiment), an experiment that aims to use the high-quality and high-energy electron beam of the European XFEL and a powerful laser. The scientific objective of the experiment is to study quantum electrodynamics processes in the regime of strong fields. High-energy electrons, accelerated by the European XFEL linear accelerator, and high-energy photons, produced via Bremsstrahlung of those beam electrons, colliding with a laser beam shall experience an electric field up to three times larger than the Schwinger critical field (the field at which the vacuum itself is expected to become unstable and spark with spontaneous creation of electron-positron pairs) and access a new regime of quantum physics. The processes to be investigated, which include nonlinear Compton scattering and nonlinear Breit-Wheeler pair production, are relevant to a variety of phenomena in Nature, e.g. in the areas of astrophysics and collider physics and complement recent results in atomic physics. The setup requires in particular the extraction of a minute fraction of the electron bunches from the European XFEL accelerator, the installation of a powerful laser with sophisticated diagnostics, and an array of precision detectors optimised to measure electrons, positrons and photons. Physics sensitivity projections based on simulations are also provided.

References in corpus (24)

• Extremely high-intensity laser interactions with fundamental quantum systems
• 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
• Finite size effects in stimulated laser pair production
• Signatures of High-Intensity Compton Scattering
• Complete QED theory of multiphoton trident pair production in strong laser fields
• Trident pair production in strong laser pulses
• Experimental Evidence of Quantum Radiation Reaction in Aligned Crystals
• Photon polarisation in electron-seeded pair-creation cascades
• The intensity dependent mass shift: existence, universality and detection
• Consequences of Dirac Theory of the Positron
• Trident pair production in a constant crossed field
• The Muon (g-2) Theory Value: Present and Future
• Trident pair production in plane waves: Coherence, exchange, and spacetime inhomogeneity
• Probing ALPs and the Axiverse with Superconducting Radiofrequency Cavities
• Charged particle detection performances of CMOS pixel sensors produced in a 0.18 um process with a high resistivity epitaxial layer
• Nonlinear trident pair production in an arbitrary plane wave: a focus on the properties of the transition amplitude
• Measuring the Boiling Point of the Vacuum of Quantum Electrodynamics
• Strong field QED in lepton colliders and electron/laser interactions
• The effect of interference on the trident process in a constant crossed field
• New method of computing the contributions of graphs without lepton loops to the electron anomalous magnetic moment in QED
• Virtual axion-like particle complement to Euler-Heisenberg-Schwinger action
• Performance and Moli`ere radius measurements using a compact prototype of LumiCal in an electron test beam
• A Calibration System for Compton Polarimetry at $e^{+}{e}^{-}$ Linear Colliders

Cited by in corpus (29)

• Advances in QED with intense background fields
• Conceptual Design Report for the LUXE Experiment
• Spin and polarisation dependent LCFA rates for nonlinear Compton and Breit-Wheeler processes
• Observation and measurement of forward proton scattering in association with lepton pairs produced via the photon fusion mechanism at ATLAS
• Loops and polarization in strong-field QED
• Polarized QED cascades
• Approximating higher-order nonlinear QED processes with first-order building blocks
• On Seminal HEDP Research Opportunities Enabled by Colocating Multi-Petawatt Laser with High-Density Electron Beams
• The trident process in laser pulses
• Onset of electron-seeded cascades in generic electromagnetic fields
• On the Higher Loop Euler-Heisenberg Trans-Series Structure
• Non-linear Breit-Wheeler process with linearly polarized beams
• WKB Electron Wave Functions in a Tightly Focused Laser Beam
• Numerical approach to the semiclassical method of pair production for arbitrary spins and photon polarization
• Coherent quantum enhancement of pair production in the null domain
• Nonlinear trident in the high-energy limit: Nonlocality, Coulomb field and resummations
• First-order strong-field QED processes including the damping of particles states
• Helicity transfer in strong laser fields via the electron anomalous magnetic moment
• Toward the observation of interference effects in nonlinear Compton scattering
• Absorption cross section in an intense plane wave background
• Nonlinear Compton scattering and nonlinear Breit-Wheeler pair production including the damping of particle states
• Impact of laser polarization on q-exponential photon tails in non-linear Compton scattering
• Non-perturbative signatures of non-linear Compton scattering
• Strong-field Breit-Wheeler pair production in ${\mathrm{QED}}_{2+1}$
• Creating pair plasmas with observable collective effects
• Generation of quasi-monoenergetic positron beams in chirped laser fields
• Studies of high-field QED with the LUXE experiment at the European XFEL
• Positron energy distribution in factorized trident process
• QScatter: Numerical Framework for Fast Prediction of Particle Distributions in Electron-Laser Scattering