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
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 sing...
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