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20 April 2024

» arxiv » 0711.4994

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Near threshold production of the pseudoscalar mesons at the COSY-11 facility
P. Moskal ; R. Czyzykiewicz ; H. H. Adam ; A. Budzanowski ; E. Czerwinski ; D. Gil ; D. Grzonka ; M. Janusz ; L. Jarczyk ; B. Kamys ; A. Khoukaz ; K. Kilian ; P. Klaja ; W. Oelert ; C. Piskor-Ignatowicz ; J. Przerwa ; B. Rejdych ; J. Ritman ; T. Sefzick ; M. Siemaszko ; M. Silarski ; J. Smyrski ; A. Taschner ; M. Wolke ; P. Winter ; P. Wustner ; M. Zielinski ; W. Zipper ;
Date:	30 Nov 2007
Abstract:	We summarise measurements of the COSY-11 collaboration concerning the excitation functions of the near threshold pseudoscalar meson production in the proton-proton interaction. The results are discussed in the context of the meson-nucleon and hyperon-nucleon interactions. We conclude that the $eta$-proton interaction is significantly stronger than the eta’-proton interaction. Similarly, we found that the hyperon Lambda interacts with the nucleon considerably stronger than the hyperon Sigma, and that the interaction of (K-)-proton is much stronger than this of the (K+)-proton.
Source:	arXiv, 0711.4994
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