Coupled-Channel Analysis of the Process <i>γγ</i>→<i>π</i><sup>0</sup><i>π</i><sup>0</sup>
Yury S. Surovtsev,
Petr Bydžovský,
Thomas Gutsche,
Robert Kamiński,
Valery E. Lyubovitskij,
Miroslav Nagy
Affiliations
Yury S. Surovtsev
Bogoliubov Laboratory of Theoretical Physics, Joint Institute for Nuclear Research, 141980 Dubna, Russia
Petr Bydžovský
Nuclear Physics Institute of the AS CR, 25068 Řež, Czech Republic
Thomas Gutsche
Institut für Theoretische Physik, Universität Tübingen, Kepler Center for Astro and Particle Physics, Auf der Morgenstelle 14, D-72076 Tübingen, Germany
Robert Kamiński
Institute of Nuclear Physics PAS, 31342 Cracow, Poland
Valery E. Lyubovitskij
Institut für Theoretische Physik, Universität Tübingen, Kepler Center for Astro and Particle Physics, Auf der Morgenstelle 14, D-72076 Tübingen, Germany
Miroslav Nagy
Institute of Physics, SAS, 84511 Bratislava, Slovakia
We study the process γγ→π0π0 involving the principal mechanisms, the structure of its cross section and the role of individual isoscalar-tensor resonances in the saturation of its energy spectrum.
