English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We study s-wave meson-baryon scattering using the chiral unitary model. Weconsider $1/2^{-}$ baryon resonances as quasibound states of the low lyingmesons ($\pi,K,\eta$) and baryons ($N,\Lambda,\Sigma,\Xi$). In previous works,the subtraction constants which appear in loop integrals were found to largelydepend on the channels, and it was necessary to fit these constants toreproduce the data. In order to extend this model to all channels with fewerparameters, we introduce flavor SU(3) breaking interactions in the framework ofchiral perturbation theory. It is found, however, that the observed SU(3)breaking in meson-baryon scattering cannot be explained by the present SU(3)breaking interactions. The role and importance of the subtraction constants inthe present framework are discussed.Comment: PTPTeX, 26 pages, 13 figures, 15 tables, final version to appear in  Prog. Theor. Phy

Detailed Analysis of the Chiral Unitary Model for Meson-Baryon Scattering with Flavor SU (3) Breaking Effects