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

  • The COSY-TOF Collaboration
  • S. Jowzaee
  • E. Borodina
  • H. Clement
  • E. Doroshkevich
  • R. Dzhygadlo
  • K. Ehrhardt
  • W. Eyrich
  • W. Gast
  • A. Gillitzer
  • D. Grzonka
  • F. Hauenstein
  • P. Klaja
  • L. Kober
  • K. Kilian
  • M. Krapp
  • M. Mertens
  • P. Moskal
  • J. Ritman
  • E. Roderburg
  • M. Röder
  • W. Schroeder
  • T. Sefzick
  • J. Smyrski
  • P. Wintz
  • P. Wüstner
Regular Article - Experimental Physics

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.

Keywords

Angular Distribution Invariant Mass Invariant Mass Distribution Virtual State Dalitz Plot 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© SIF, Springer-Verlag Berlin Heidelberg 2016

Authors and Affiliations

  • The COSY-TOF Collaboration
  • S. Jowzaee
    • 1
    • 7
  • E. Borodina
    • 1
  • H. Clement
    • 4
    • 6
  • E. Doroshkevich
    • 5
    • 6
  • R. Dzhygadlo
    • 1
  • K. Ehrhardt
    • 5
    • 6
  • W. Eyrich
    • 4
  • W. Gast
    • 1
  • A. Gillitzer
    • 1
  • D. Grzonka
    • 1
  • F. Hauenstein
    • 1
    • 4
  • P. Klaja
    • 1
    • 4
  • L. Kober
    • 4
  • K. Kilian
    • 1
  • M. Krapp
    • 4
  • M. Mertens
    • 1
  • P. Moskal
    • 7
  • J. Ritman
    • 1
    • 2
    • 8
  • E. Roderburg
    • 1
  • M. Röder
    • 1
  • W. Schroeder
    • 9
  • T. Sefzick
    • 1
  • J. Smyrski
    • 7
  • P. Wintz
    • 1
  • P. Wüstner
    • 3
  1. 1.Institut für KernphysikForschungszentrum JülichJülichGermany
  2. 2.Jülich Aachen Research AllianzForces and Matter Experiments (JARA-FAME)JülichGermany
  3. 3.Zentralinstitut für EngineeringElektronik und AnalytikJülichGermany
  4. 4.Friedrich-Alexander-Universität Erlangen-NürnbergErlangenGermany
  5. 5.Physikalisches Institut der Universität TübingenTübingenGermany
  6. 6.Kepler Center for Astro and Particle PhysicsUniversity of TübingenTübingenGermany
  7. 7.Institute of PhysicsJagellonian UniversityCracowPoland
  8. 8.Experimentalphysik IRuhr-Universität BochumBochumGermany
  9. 9.Corporate DevelopmentForschungszentrum JülichJülichGermany

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