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Title: The K⁻N→KΞ reaction in coupled channel chiral models up to next-to-leading order

Abstract

We study the meson-baryon interaction in S-wave in the strangeness S=-1 sector using a chiral unitary approach based on a next-to-leading order chiral SU(3) Lagrangian. We fit our model to the large set of experimental data in different two-body channels. We pay particular attention to the K⁻N→KΞ reaction, where the effect of the next-to-leading order terms in the Lagrangian are sufficiently large to be observed, since at tree level the cross section of this reaction is zero. For these channels we improve our approach by phenomenologically taking into account effects of the high spin hyperonic resonances.

Authors:
;  [1];  [2]
  1. Dept. d'Estructura i Constituents de la Matèria, Universitat de Barcelona, Martí Franquès 1, E08028 Barcelona, Spain and Institut de Ciències del Cosmos, Universitat de Barcelona, Martí Franquès 1, E08028 Bar (Spain)
  2. Dept. d'Estructura i Constituents de la Matèria, Universitat de Barcelona, Martí Franquès 1, E08028 Barcelona (Spain)
Publication Date:
OSTI Identifier:
22306053
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 1606; Journal Issue: 1; Conference: 2. Russian-Spanish congress on particle and nuclear physics at all scales, astroparticle physics and cosmology, St. Petersburg (Russian Federation), 1-4 Oct 2013; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-243X
Publisher:
AIP
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; CHIRALITY; COUPLED CHANNEL THEORY; CROSS SECTIONS; LAGRANGIAN FUNCTION; MESON-BARYON INTERACTIONS; S WAVES; SPIN; STRANGENESS; TWO-BODY PROBLEM

Citation Formats

Magas, V. K., Ramos, A., and Feijoo, A. The K⁻N→KΞ reaction in coupled channel chiral models up to next-to-leading order. United States: N. p., 2009. Web. doi:10.1063/1.4891135.
Magas, V. K., Ramos, A., & Feijoo, A. The K⁻N→KΞ reaction in coupled channel chiral models up to next-to-leading order. United States. https://doi.org/10.1063/1.4891135
Magas, V. K., Ramos, A., and Feijoo, A. 2009. "The K⁻N→KΞ reaction in coupled channel chiral models up to next-to-leading order". United States. https://doi.org/10.1063/1.4891135.
@article{osti_22306053,
title = {The K⁻N→KΞ reaction in coupled channel chiral models up to next-to-leading order},
author = {Magas, V. K. and Ramos, A. and Feijoo, A.},
abstractNote = {We study the meson-baryon interaction in S-wave in the strangeness S=-1 sector using a chiral unitary approach based on a next-to-leading order chiral SU(3) Lagrangian. We fit our model to the large set of experimental data in different two-body channels. We pay particular attention to the K⁻N→KΞ reaction, where the effect of the next-to-leading order terms in the Lagrangian are sufficiently large to be observed, since at tree level the cross section of this reaction is zero. For these channels we improve our approach by phenomenologically taking into account effects of the high spin hyperonic resonances.},
doi = {10.1063/1.4891135},
url = {https://www.osti.gov/biblio/22306053}, journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 1606,
place = {United States},
year = {Thu Jan 01 00:00:00 EST 2009},
month = {Thu Jan 01 00:00:00 EST 2009}
}