A laser–plasma platform for photon–photon physics: the two photon Breit–Wheeler process
- Kettle, B.
- Hollatz, D.
- Gerstmayr, E.
- Samarin, G.M.
- Alejo, A.
- Astbury, S.
- Baird, C.
- Bohlen, S.
- Campbell, M.
- Colgan, C.
- Dannheim, D.
- Gregory, C.
- Harsh, H.
- Hatfield, P.
- Hinojosa, J.
- Katzir, Y.
- Morton, J.
- Murphy, C.D.
- Nurnberg, A.
- Osterhoff, J.
- Pérez-Callejo, G.
- Põder, K.
- Rajeev, P.P.
- Roedel, C.
- Roeder, F.
- Salgado, F.C.
- Sarri, G.
- Seidel, A.
- Spannagel, S.
- Spindloe, C.
- Steinke, S.
- Streeter, M.J. V.
- Thomas, A.G. R.
- Underwood, C.
- Watt, R.
- Zepf, M.
- Rose, S.J.
- Mangles, S.P. D.
DOIAbstract
International audienceWe 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 hyb...
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