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High-precision measurement of the associated strangeness production in proton-proton interactions

  • Regular Article - Experimental Physics
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Abstract.

A new high-precision measurement of the reaction \(pp\rightarrow pK^{+}\Lambda\) at a beam momentum of 2.95 GeV/c with more than 200 000 analyzed events allows a detailed analysis of differential observables and their inter-dependencies. Correlations of the angular distributions with momenta are examined. The invariant mass distributions are compared for different regions in the Dalitz plots. The cusp structure at the \(N\Sigma\) threshold is described with the Flatté formalism and its variation in the Dalitz plot is analyzed.

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Authors and Affiliations

  1. Institut für Kernphysik, Forschungszentrum Jülich, 52428, Jülich, Germany

    S. Jowzaee, E. Borodina, R. Dzhygadlo, W. Gast, A. Gillitzer, D. Grzonka, F. Hauenstein, P. Klaja, K. Kilian, M. Mertens, J. Ritman, E. Roderburg, M. Röder, T. Sefzick & P. Wintz

  2. Jülich Aachen Research Allianz, Forces and Matter Experiments (JARA-FAME), Jülich, Germany

    J. Ritman

  3. Zentralinstitut für Engineering, Elektronik und Analytik, 52428, Jülich, Germany

    P. Wüstner

  4. Friedrich-Alexander-Universität Erlangen-Nürnberg, 91058, Erlangen, Germany

    H. Clement, W. Eyrich, F. Hauenstein, P. Klaja, L. Kober & M. Krapp

  5. Physikalisches Institut der Universität Tübingen, Auf der Morgenstelle 14, 72076, Tübingen, Germany

    E. Doroshkevich & K. Ehrhardt

  6. Kepler Center for Astro and Particle Physics, University of Tübingen, Auf der Morgenstelle 14, 72076, Tübingen, Germany

    H. Clement, E. Doroshkevich & K. Ehrhardt

  7. Institute of Physics, Jagellonian University, PL-30-348, Cracow, Poland

    S. Jowzaee, P. Moskal & J. Smyrski

  8. Experimentalphysik I, Ruhr-Universität Bochum, 44780, Bochum, Germany

    J. Ritman

  9. Corporate Development, Forschungszentrum Jülich, 52428, Jülich, Germany

    W. Schroeder

Authors
  1. S. Jowzaee
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  2. E. Borodina
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  3. H. Clement
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  4. E. Doroshkevich
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  5. R. Dzhygadlo
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  6. K. Ehrhardt
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  7. W. Eyrich
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  8. W. Gast
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  9. A. Gillitzer
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  10. D. Grzonka
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  11. F. Hauenstein
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  12. P. Klaja
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  13. L. Kober
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  14. K. Kilian
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  15. M. Krapp
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  16. M. Mertens
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  17. P. Moskal
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  18. J. Ritman
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  19. E. Roderburg
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  20. M. Röder
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  21. W. Schroeder
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  22. T. Sefzick
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  23. J. Smyrski
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  24. P. Wintz
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  25. P. Wüstner
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Consortia

The COSY-TOF Collaboration

Corresponding author

Correspondence to E. Roderburg.

Additional information

Communicated by P. Salabura

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The COSY-TOF Collaboration., Jowzaee, S., Borodina, E. et al. High-precision measurement of the associated strangeness production in proton-proton interactions. Eur. Phys. J. A 52, 7 (2016). https://doi.org/10.1140/epja/i2016-16007-4

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  • DOI: https://doi.org/10.1140/epja/i2016-16007-4

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