PHOTON-PHOTON SCATTERING, PION POLARIZABILITY, AND CHIRAL-SYMMETRY

Authors

JF DonoghueFollow
BR HolsteinFollow

Publication Date

1993

Journal or Book Title

PHYSICAL REVIEW D

Abstract

Recent attempts to detect the pion polarizability via analysis of γγ→ππ measurements are examined. The connection between calculations based on dispersion relations and on chiral perturbation theory is established by matching the low-energy chiral amplitude with that given by a full dispersive treatment. Using the values for the polarizability required by chiral symmetry, predicted and experimental cross sections are shown to be in agreement.

Comments

This is the pre-published version which is collected from arXiv. The published version is at http://prd.aps.org/abstract/PRD/v48/i1/p137_1

Pages

137-146

Volume

48

Issue

1

Recommended Citation

Donoghue, JF and Holstein, BR, "PHOTON-PHOTON SCATTERING, PION POLARIZABILITY, AND CHIRAL-SYMMETRY" (1993). PHYSICAL REVIEW D. 143.
Retrieved from https://scholarworks.umass.edu/physics_faculty_pubs/143