Corpus ID: 236171283

High-energy $\pi\pi$ scattering without and with photon radiation

  title={High-energy \$\pi\pi\$ scattering without and with photon radiation},
  author={Piotr Lebiedowicz and Otto Nachtmann and Antoni Szczurek},
Piotr Lebiedowicz,1, ∗ Otto Nachtmann,2, † and Antoni Szczurek c1, § 1Institute of Nuclear Physics Polish Academy of Sciences, Radzikowskiego 152, PL-31342 Kraków, Poland 2Institut für Theoretische Physik, Universität Heidelberg, Philosophenweg 16, D-69120 Heidelberg, Germany Abstract We discuss the processes ππ → ππ and ππ → ππγ from a general quantum field theory (QFT) point of view. In the soft-photon limit where the photon energy ω → 0 we study the theorem due to F.E. Low. We confirm his… Expand


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