Abstract:
The Compton scattering on a charged pion and the process γγ→π0π0 are studied using the dispersion relations. Unknown parameters of the S-wave ππ interaction and a sum and a difference of the π0 meson polarizabilities are found from a fit to the experimental data for the γγ→π0π0 process. The found parameters of the ππ interaction are used for the calculation of the cross section of the elastic γπ± scattering. The analysis of the obtained results shows that the experimental data for the elastic γπ± scattering in the energy region up to 1 GeV together with the data for the γγ→π0π0 process could be used both for a determination of the pion polarizability values and for study of the S-wave ππ interaction.
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Received: 20 November 1998 / Revised version: 22 January 1999
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Fil'kov, L., Kashevarov, V. Compton scattering on the charged pion and the process γγ→π0π0 . EPJ A 5, 285–292 (1999). https://doi.org/10.1007/s100500050287
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DOI: https://doi.org/10.1007/s100500050287