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Article
PHOTON-PHOTON SCATTERING, PION POLARIZABILITY, AND CHIRAL-SYMMETRY
PHYSICAL REVIEW D
  • JF Donoghue
  • BR Holstein
Publication Date
1993
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.
Disciplines
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
Citation Information
JF Donoghue and BR Holstein. "PHOTON-PHOTON SCATTERING, PION POLARIZABILITY, AND CHIRAL-SYMMETRY" PHYSICAL REVIEW D Vol. 48 Iss. 1 (1993)
Available at: http://works.bepress.com/barry_holstein/162/