Bounding elastic photon-photon scattering at s≈1 MeV using a laser-plasma platform

Watt, R. and Kettle, B. and Gerstmayr, E. and King, B. and Alejo, A. and Astbury, S. and Baird, C. and Bohlen, S. and Campbell, M. and Colgan, C. and Dannheim, D. and Gregory, C. and Harsh, H. and Hatfield, P. and Hinojosa, J. and Hollatz, D. and Katzir, Y. and Morton, J. and Murphy, C.D. and Nurnberg, A. and Osterhoff, J. and Pérez-Callejo, G. and Põder, K. and Rajeev, P.P. and Roedel, C. and Roeder, F. and Salgado, F.C. and Samarin, G.M. and Sarri, G. and Seidel, A. and Spindloe, C. and Steinke, S. and Streeter, M.J.V. and Thomas, A.G.R. and Underwood, C. and Wu, W. and Zepf, M. and Rose, S.J. and Mangles, S.P.D. (2025) Bounding elastic photon-photon scattering at s≈1 MeV using a laser-plasma platform. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 861: 139247. ISSN 0370-2693