Matches in SemOpenAlex for { <https://semopenalex.org/work/W4321210952> ?p ?o ?g. }
- W4321210952 abstract "Chiral perturbation theory and its unitarized versions have played an important role in our understanding of the low-energy strong interaction. Yet, so far, such studies typically deal exclusively with perturbative or nonperturbative channels. In this Letter, we report on the first global study of meson-baryon scattering up to one-loop order. It is shown that covariant baryon chiral perturbation theory, including its unitarization for the negative strangeness sector, can describe meson-baryon scattering data remarkably well. This provides a highly nontrivial check on the validity of this important low-energy effective field theory of QCD. We show that the K[over ¯]N related quantities can be better described in comparison with those of lower-order studies, and with reduced uncertainties due to the stringent constraints from the πN and KN phase shifts. In particular, we find that the two-pole structure of Λ(1405) persists up to one-loop order reinforcing the existence of two-pole structures in dynamically generated states." @default.
- W4321210952 created "2023-02-18" @default.
- W4321210952 creator A5017672229 @default.
- W4321210952 creator A5020107198 @default.
- W4321210952 creator A5027457123 @default.
- W4321210952 creator A5069897513 @default.
- W4321210952 date "2023-02-17" @default.
- W4321210952 modified "2023-10-16" @default.
- W4321210952 title "Cross-Channel Constraints on Resonant Antikaon-Nucleon Scattering" @default.
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