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arXiv · hep-ph/9709348

Virtual Photons in Low Energy pi-pi Scattering

Marc Knecht·Res Urech
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Abstract

The low energy scattering of pions is investigated in the presence of electromagnetic interactions at leading order and at next-to-leading order for the amplitudes involving at most one pair of charged pions. The size of the electromagnetic corrections to the S-wave scattering lengths is found to be comparable to the size of the two loop strong interaction corrections.

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Marc Knecht, Res Urech. 1997-09-15. Virtual Photons in Low Energy pi-pi Scattering. https://doi.org/10.1016/s0550-3213(98)00044-3

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