2011/05/30 by Takehisa Fujita, Fujita, Takehisa, Naohiro Kanda +1 · 1 citation
Medicine · Physics and Astronomy · #Advanced Optical Sensing Technologies #Experimental and Theoretical Physics Studies #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Optical Imaging and Spectroscopy Techniques #hep-ph
paper · pdf · doi:10.48550/arxiv.1106.0465
7 pages, no figure
arxiv created 2011/05/30 · openalex publication_date 2011/05/30 · arxiv updated 2011/06/03 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We discuss a possibility to measure the photon-photon scattering cross section at low energy in a theoretical standpoint. The cross section of photon-photon scattering at low energy can be written as dσ\over dΩ ≃ α4\over (12π)2 ω2 (3+2cos2θ+cos4θ) with ω the energy of photon. The magnitude of the cross section at ω≃ 1 eV should be 1037 times larger than the prediction of Heisenberg and Euler who calculated the photon scattering by the classical picture of field theory. Due to a difficulty of the initial condition of photon-photon reaction process, we propose to first measure γ+γ→ e++e- reaction at a few MeV before measuring γ+γ→ γ+γ elastic scattering.