Low-energy photon-photon fusion into three pions in generalized chiral perturbation theory

1999/04/26 by Ll. Ametller, Joachim Kambor, J. Kambor +4
Mathematics · Physics and Astronomy · #Amplitude #B-factory #Chiral perturbation theory #Chiral symmetry #Chiral symmetry breaking #High-Energy Particle Collisions Research #Mathematics #Particle physics #Particle physics theoretical and experimental studies #Perturbation theory (quantum mechanics) #Photon #Physics #Pi #Pion #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quantum electrodynamics #Quantum mechanics #Symmetry breaking #hep-ph

paper · pdf · doi:10.1103/physrevd.60.094003

published as Phys. Rev. D 60, 094003 (1999) · 33 pages, 5 postscript figures

arxiv created 1999/04/26 · openalex publication_date 1999/09/24 · arxiv updated 2016/08/24 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

The processes \ensuremathγ\stackrel\ensuremath→\ensuremathγ\ensuremathπ⁰\ensuremathπ⁰\ensuremathπ⁰ and \ensuremathγ\stackrel\ensuremath→\ensuremathγ\ensuremathπ⁺\ensuremathπ^\ensuremath-\ensuremathπ⁰ are considered in generalized chiral perturbation theory, in view of their potential sensitivity to the mechanism of spontaneous breaking of chiral symmetry and to various counterterms. The amplitudes are computed up to order O(p⁶). The event production rates are estimated for the Daphne \ensuremathφ-factory and for a future \ensuremathτ-charm factory.

Citations

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