Contribution to a conference proceedings/Internal Report

PUBDB-2015-05636

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Cascade production in antikaon reactions with protons and nuclei

Magas, V. K. ; Feijoo, A. ; Ramos, A.

2014
Deutsches Elektronen-Synchrotron, DESY Hamburg

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Please use a persistent id in citations: doi:10.3204/DESY-PROC-2014-04/170

Report No.: DESY-PROC-2014-04

Abstract: We study the meson-baryon interaction in S-wave in the strangeness S=-1 sector using a chiral SU(3) Lagrangian extended to next-to-leading order (NLO). Our model has 7 new parameters, coming from NLO terms in the chiral Lagrangian, which are fitted to the large set of experimental data available for different two-body channels. We pay particular attention to the $K^- p \rightarrow K \Xi$ reactions, where the effect of the NLO terms in the Lagrangian is very important. In order to improve our model in these particular channels, we take into account phenomenologically the effects of the high spin hyperonic resonances, namely $\Sigma(2030)$ $\left( \frac{7}{2}^+ \right)$ and $\Sigma(2250)$ $\left( \frac{5}{2}^- \right)$. Finally, the developed model is applied to simulate the $\Xi$ production in nuclei.

Keyword(s): effective Lagrangian: chiral ; symmetry: SU(3) ; symmetry: chiral ; higher-order: 1 ; K- p: interaction ; K- p: scattering ; Sigma(2030) ; Sigma(2250) ; Xi: production ; K- p --> K Xi

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Contributing Institute(s):

1. LHC/ATLAS Experiment (ATLAS)
2. LHC/CMS Experiment (CMS)
3. Uni Hamburg / Experimentalphysik (UNI/EXP)

Research Program(s):

1. 611 - Fundamental Particles and Forces (POF3-611) (POF3-611)

Experiment(s):

1. No specific instrument

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Database coverage:

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Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Book/Proceedings/Internal Report Schmidt, A. (Editor)>Extern* ; Sander, C. (Editor)DESY*
Proceedings, 20th International Conference on Particles and Nuclei (PANIC 14)
2014Panic2014, Panic2014, HamburgHamburg, Germany, 25 Aug 2014 - 29 Aug 20142014-08-252014-08-29 Hamburg : Deutsches Elektronen-Synchrotron, DESY 1-754 (2014) [10.3204/DESY-PROC-2014-04]2014     Files  Fulltext BibTeX | EndNote: XML, Text | RIS

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