Spectral caustics in laser assisted Breit-Wheeler process
arXiv:1509.01983 · doi:10.1016/j.physletb.2016.01.062
Abstract
Electron-positron pair production by the Breit-Wheeler process embedded in a strong laser pulse is analyzed. The transverse momentum spectrum displays prominent peaks which are interpreted as caustics, the positions of which are accessible by the stationary phases. Examples are given for the superposition of an XFEL beam with an optical high-intensity laser beam. Such a configuration is available, e.g., at LCLS at present and at European XFEL in near future. It requires a counter propagating probe photon beam with high energy which can be generated by synchronized inverse Compton backscattering.
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- Approximating higher-order nonlinear QED processes with first-order building blocks
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- Strong-Field Breit-Wheeler Pair Production in Short Laser Pulses: Identifying Multiphoton Interference and Carrier-Envelope-Phase Effects
- Higher fidelity simulations of nonlinear Breit-Wheeler pair creation in intense laser pulses
- Doubly assisted Sauter-Schwinger effect
- Strong-Field Breit-Wheeler Pair Production in Two Consecutive Laser Pulses with Variable Time Delay
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- Numerical approach to the semiclassical method of pair production for arbitrary spins and photon polarization
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- Pair production by Schwinger and Breit-Wheeler processes in bi-frequent fields
- Strong-field QED in Furry-picture momentum-space formulation: Ward identities and Feynman diagrams
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