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Low-energy photon-photon collisions to two-loop order

  • J. Gasser
Part IV Hadron Polarizabilities
Part of the Lecture Notes in Physics book series (LNP, volume 452)

Abstract

I report on a recent calculation of the amplitude for γγπ0π0 to two loops in chiral perturbation theory.

Keywords

Chiral Perturbation Theory Neutral Pion Chiral Expansion Pion Decay Constant Pion Polarizability 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag 1995

Authors and Affiliations

  • J. Gasser
    • 1
  1. 1.Institute for Theoretical PhysicsUniversity of BernSwitzerland

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