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arXiv · hep-ph/9511271

Master Formula Approach to $γγ\to ππ$ processes

S. Chernyshev·I. Zahed
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Abstract

We analyze the $γγ\to π^0π^0$ and $γγ\to π^+π^-$ 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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S. Chernyshev, I. Zahed. 1995-11-08. Master Formula Approach to $γγ\to ππ$ processes. https://arxiv.org/abs/hep-ph/9511271

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