Abstract
The general expressions for the five independent amplitudes of photon-photon scattering are given in a rather compact form. It has been shown in detail, in a previous paper (1), that this result is easily obtained for all the values of the energy and of the angle with the aid of the dispersion relations techniques. In that paper one particular amplitude was calculated using the double-dispersive representation and the Cutkosky rules for the calculation of the spectral functions at the lowest perturbative order. The knowledge of the amplitudes for any value of the angle enables one to make the numerical evaluation of the total cross-section. The curve of the total cross-section as a function of the energy, for unpolarized photons, is given in the last Section. The maximum of the total cross-section, σ unp max ≈1.6 µb, is reached when the energy of each photon is about 0.7 MeV in the center-of-mass system. In the last Section angular distributions for unpolarized as well as polarized photons are given.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
