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Título
A laser–plasma platform for photon–photon physics: the two photon Breit–Wheeler process
Autor
Año del Documento
2021
Editorial
Institute of Physics
Documento Fuente
New Journal of Physics, Noviembre 2021, vol. 23, p. 115006
Abstract
We describe a laser–plasma platform for photon–photon collision experiments to measure fundamental quantum electrodynamic processes. As an example we describe using this platform to attempt to observe the linear Breit–Wheeler process. The platform has been developed using the Gemini laser facility at the Rutherford Appleton Laboratory. A laser Wakefield accelerator and a bremsstrahlung convertor are used to generate a collimated beam of photons with energies of hundreds of MeV, that collide with keV x-ray photons generated by a laser heated plasma target. To detect the pairs generated by the photon–photon collisions, a magnetic transport system has been developed which directs the pairs onto scintillation-based and hybrid silicon pixel single particle detectors (SPDs). We present commissioning results from an experimental campaign using this laser–plasma platform for photon–photon physics, demonstrating successful generation of both photon sources, characterisation of the magnetic transport system and calibration of the SPDs, and discuss the feasibility of this platform for the observation of the Breit–Wheeler process. The design of the platform will also serve as the basis for the investigation of strong-field quantum electrodynamic processes such as the nonlinear Breit–Wheeler and the Trident process, or eventually, photon–photon scattering.
Revisión por pares
SI
Patrocinador
El proyecto ha recibido financiación del Consejo Europeo de Investigación (ERC) en el marco del programa de la Unión Europea. Programa de investigación e innovación Horizonte 2020 (Acuerdo de Subvención No. 682399) y STFC (Subvención No. ST/P002021/1). JH y AT reconocen el apoyo de la subvención n.º 1804463 de la Fundación Nacional de Ciencias de EE. UU. GS desea agradecer el apoyo de EPSRC (Subvenciones Nos. EP/N027175/1, EP/P010059/1).
Idioma
spa
Tipo de versión
info:eu-repo/semantics/publishedVersion
Derechos
openAccess
Collections
Files in this item
Except where otherwise noted, this item's license is described as Atribución 4.0 Internacional