NSTAR 2007 pp 202-204 | Cite as

Near threshold production of the pseudoscalar mesons at the COSY-11 facility

  • P. Moskal
  • R. Czyżykiewicz
  • H. -H. Adam
  • A. Budzanowski
  • E. Czerwiński
  • 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. Täschner
  • M. Wolke
  • P. Winter
  • P. Wüstner
  • M. Zieliński
  • W. Zipper
Conference paper

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 η-proton interaction is significantly stronger than the η′-proton interaction. Similarly, we found that the hyperon Λ interacts with the nucleon considerably stronger than the hyperon Σ, and that the interaction of K-proton is much stronger than this of the K+-proton.

PACS

14.40.-n Mesons 14.40.Aq π,K, and η mesons 13.60.Le Meson production 

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Copyright information

© Società Italiana di Fisica / Springer-Verlag 2008

Authors and Affiliations

  • P. Moskal
    • 1
    • 2
  • R. Czyżykiewicz
    • 1
    • 2
  • H. -H. Adam
    • 3
  • A. Budzanowski
    • 4
  • E. Czerwiński
    • 1
  • D. Gil
    • 1
  • D. Grzonka
    • 2
  • M. Janusz
    • 1
    • 2
  • L. Jarczyk
    • 1
  • B. Kamys
    • 1
  • A. Khoukaz
    • 3
  • K. Kilian
    • 2
  • P. Klaja
    • 1
    • 2
  • W. Oelert
    • 2
  • C. Piskor-Ignatowicz
    • 1
  • J. Przerwa
    • 1
    • 2
  • B. Rejdych
    • 1
  • J. Ritman
    • 2
  • T. Sefzick
    • 2
  • M. Siemaszko
    • 5
  • M. Silarski
    • 1
  • J. Smyrski
    • 1
  • A. Täschner
    • 3
  • M. Wolke
    • 2
  • P. Winter
    • 6
  • P. Wüstner
    • 2
  • M. Zieliński
    • 1
  • W. Zipper
    • 5
  1. 1.Institute of PhysicsJagellonian UniversityCracowPoland
  2. 2.IKP & ZELForschungszentrum JülichJülichGermany
  3. 3.IKPWestfälische Wilhelms-UniversitätMünsterGermany
  4. 4.Institute of Nuclear PhysicsCracowPoland
  5. 5.Institute of PhysicsUniversity of SilesiaKatowicePoland
  6. 6.Department of PhysicsUniversity of Illinois at Urbana-ChampaignUrbanaUSA

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