X-ray photon scattering at a focused high-intensity laser pulse

Abstract

We study x-ray photon scattering in the head-on collision of an XFEL pulse and a focused high-intensity laser pulse, described as paraxial Laguerre-Gaussian beam of arbitrary mode composition. For adequately chosen relative orientations of the polarization vectors of the colliding laser fields, this gives rise to a vacuum birefringence effect manifesting itself in polarization flipped signal photons. Throughout this article the XFEL is assumed to be mildly focused to a waist larger than that of the high-intensity laser beam. As previously demonstrated for the special case of a fundamental paraxial Gaussian beam, this scenario is generically accompanied by a scattering phenomenon of x-ray energy signal photons outside the forward cone of the XFEL beam, potentially assisting the detection of the effect in experiment. Here, we study the fate of the x-ray scattering signal under exemplary deformations of the transverse focus profile of the high-intensity pump.

21 pages, 3 figures

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Cited by in corpus (16)

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• Expanding Nuclear Physics Horizons with the Gamma Factory
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• Direct accessibility of the fundamental constants governing light-by-light scattering
• Vacuum birefringence and diffraction at XFEL: from analytical estimates to optimal parameters
• Letter of Intent: Towards a Vacuum Birefringence Experiment at the Helmholtz International Beamline for Extreme Fields
• Enhancing quantum vacuum signatures with tailored laser beams
• Vacuum birefringence at the Gamma Factory
• Quantum vacuum signatures in multi-color laser pulse collisions
• Quantum vacuum processes in the extremely intense light of relativistic plasma mirror sources
• Numerical Simulations of the Nonlinear Quantum Vacuum in the Heisenberg-Euler Weak-Field Expansion
• A dark-field setup for the measurement of light-by-light scattering with high-intensity lasers
• Back-reflection in dipole fields and beyond
• Phase transition analogs in laser collisions with a dark-field setup
• X-ray vacuum diffraction at finite spatio-temporal offset