Kaon-nucleon scattering from chiral Lagrangians

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The s-wave K±N scattering amplitude is computed up to one-loop order corresponding to next-to-next-to-leading order (or N2LO in short) in chiral perturbation with a heavy-baryon effective chiral Lagrangian. Constraining the low-energy constants by on-shell scattering lengths, we predict the off-shell s-wave K-N scattering amplitudes relevant to kaonic atoms and K-condensation in "nuclear star" matter. The crossing-even one-loop corrections are found to play an important role in determining the higher-order chiral corrections. © 1994.




Lee, C. H., Jung, H., Min, D. P., & Rho, M. (1994). Kaon-nucleon scattering from chiral Lagrangians. Physics Letters B, 326(1–2), 14–20. https://doi.org/10.1016/0370-2693(94)91185-1

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