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Virtual photons in low energy Π−Π scattering

1998; Elsevier BV; Volume: 519; Issue: 1-2 Linguagem: Inglês

10.1016/s0550-3213(98)00044-3

ISSN

1873-1562

Autores

Marc Knecht, Res Urech,

Tópico(s)

High-Energy Particle Collisions Research

Resumo

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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