Light-by-light scattering in a photon–photon collider

• Published in: The European physical journal. C, Particles and fields Vol. 78; no. 11; pp. 1 - 7
• Main Authors: Takahashi, T., An, G., Chen, Y., Chou, W., Huang, Y., Liu, W., Lu, W., Lv, J., Pei, G., Pei, S., Shen, C. P., Sun, B., Zhang, C.
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01-11-2018; Springer; Springer Nature B.V; SpringerOpen
• Subjects: Astronomy; Astrophysics and Cosmology; Computer simulation; Detectors; Elementary Particles; Hadrons; Heavy Ions; Lasers; Light; Light scattering; Measurement Science and Instrumentation; Monte Carlo method; Monte Carlo simulation; Nuclear Energy; Nuclear Physics; Photons; Physics; Physics and Astronomy; Quantum Field Theories; Quantum Field Theory; Regular Article - Experimental Physics; Statistical significance; String Theory
• ISSN: 1434-6044; 1434-6052
• DOI: 10.1140/epjc/s10052-018-6364-1

We studied the feasibility of observing light-by-light scattering in a photon–photon collider based on an existing accelerator complex and a commercially available laser system. We investigated the statistical significance of the signal over the QED backgrounds through a Monte Carlo simulation with a detector model. The study showed that light-by-light scattering can be observed with a statistical significance of eight to ten sigma in a year of operation, depending on the operating conditions.