Isospin violation in pion-kaon scattering

Abstract

We consider strong and electromagnetic isospin violation in near-threshold pion-kaon scattering. At tree level, such effects are small for all physical channels. We work out the complete one-loop corrections to the process pi^- K^+ -> pi^0 K^0. They come out rather small. We also show that the corresponding radiative cross section is highly suppressed at threshold.

23 pp, 3 figs. (uses epsf), error corrected, version to appear in Nuclear Physics A

References in corpus (4)

• QCD Isospin Breaking in Meson Masses, Decay Constants and Quark Mass Ratios
• Decays of the pi+ pi- atom
• Comparison of Pion-Kaon Scattering in SU(3) Chiral Perturbation Theory and Dispersion Relations
• Zweig rule violation in the scalar sector and values of low-energy constants

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