Master Formula Approach to $γγ\to ππ$ processes

Details Master Formula Approach to $γγ\to ππ$ processes Master Formula Approach to $γγ\to ππ$ processes

1995-11-08

arxiv.org/abs/hep-ph/9511271v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

LaTex, 11 pages, 5 PostScript figures (uuencoded)

Scientific paper

We analyze the $\gamma\gamma \to \pi^0\pi^0$ and $\gamma\gamma \to
\pi^+\pi^-$ reactions using the master formula approach to chiral symmetry
breaking. The pertinent vacuum correlators are estimated at tree level, and the
results are compared with one- and two-loop chiral perturbation theory. The
Compton scattering amplitude and the pion polarizabilities are also discussed.

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