Meson-Baryon Scattering in Extended-on-Mass-Shell Scheme Up to NNLO

DOI10.1007/978-3-030-32357-8_107zbMath1437.81172arXiv1902.03395OpenAlexW3000237677MaRDI QIDQ3299755

Xiulei Ren, Menglin du, Lisheng Geng, Junxu Lu

Publication date: 24 July 2020

Published in: Recent Progress in Few-Body Physics (Search for Journal in Brave)

Abstract: In this present work, we study the scattering of a pseudoscalar meson off one ground state octet baryon in covariant baryon chiral perturbation theory up to the next-to-next-to-leading order. We remove the power counting breaking terms with the extended-on-mass-shell scheme. We perform the first combined study of the pion-nucleon and kaon-nucleon scattering data and show that the covariant baryon Chiral perturbation theory can provide a reasonable description of the experimental data for both channels.

Full work available at URL: https://arxiv.org/abs/1902.03395

Mathematics Subject Classification ID

Nuclear physics (81V35) Strong interaction, including quantum chromodynamics (81V05) Perturbative methods of renormalization applied to problems in quantum field theory (81T15) Covariant wave equations in quantum theory, relativistic quantum mechanics (81R20) (2)-body potential quantum scattering theory (81U05) Effective quantum field theories (81T12)

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