Study of the reactions γp → K+ Σ± π at photon energies up to 2.6 GeV

  • I. Schulday
  • R. Lawall
  • J. Barth
  • K. -H. Glander
  • S. Goers
  • J. Hannappel
  • N. Jöpen
  • F. Klein
  • E. Klempt
  • D. Menze
  • E. Paul
  • W. J. Schwille
Regular Article - Experimental Physics

Abstract

The reactions γp → K+ Σ± π were studied with the SAPHIR detector using a tagged photon beam at the electron stretcher facility ELSA in Bonn. The decays Σ and Σ++, 0 were fully reconstructed. Reaction cross-sections were measured as a function of the photon energy from threshold up to 2.6 GeV with considerably improved statistics compared to a previous bubble chamber measurement. The cross-sections rise monotonically with increasing photon energy. The two-particle mass distributions of Σ±π and K+π show substantial production of resonant states.

References

  1. 1.
    E. Klempt, J.-M. Richard, Rev. Mod. Phys. 82, 1095 (2010)CrossRefADSGoogle Scholar
  2. 2.
    K.-H. Glander et al., Eur. Phys. J. A 19, 251 (2004)CrossRefADSGoogle Scholar
  3. 3.
    S. Goers et al., Phys. Lett. B 464, 331 (1999)CrossRefADSGoogle Scholar
  4. 4.
    R. Lawall et al., Eur. Phys. J. A 24, 275 (2005)CrossRefADSGoogle Scholar
  5. 5.
    C. Wu et al., Eur. Phys. J. A 23, 317 (2005)CrossRefADSGoogle Scholar
  6. 6.
    J. Barth et al., Eur. Phys. J. A 18, 117 (2003)CrossRefADSGoogle Scholar
  7. 7.
    J. Barth et al., Eur. Phys. J. A 17, 269 (2003)CrossRefADSGoogle Scholar
  8. 8.
    R. Plötzke et al., Phys. Lett. B 444, 555 (1998)CrossRefGoogle Scholar
  9. 9.
    W.J. Schwille et al., Nucl. Instrum. Methods A 344, 470 (1994)CrossRefADSGoogle Scholar
  10. 10.
    W. Hillert, Eur. Phys. J. A 28, 139 (2006)CrossRefADSGoogle Scholar
  11. 11.
    F.W. Wieland et al., Eur. Phys. J. A 47, 47 (2011) (subsequent paper in this issue)CrossRefMathSciNetADSGoogle Scholar
  12. 12.
    ABBHHM Collaboration (R. Erbe et al.), Phys. Rev. 188, 2060 (1969)CrossRefADSGoogle Scholar
  13. 13.
    S. Goers, Doctoral Thesis, Bonn University (1999) BONN-IR-1999-09Google Scholar
  14. 14.
    B. Krusche et al., Phys. Rev. Lett. 74, 3736 (1995)CrossRefADSGoogle Scholar
  15. 15.
    A. Bleckmann et al., Z. Phys. 239, 1 (1970)CrossRefADSGoogle Scholar
  16. 16.
    R. Bradford et al., Phys. Rev. C 73, 035202 (2006)CrossRefADSGoogle Scholar

Copyright information

© SIF, Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • I. Schulday
    • 1
  • R. Lawall
    • 1
  • J. Barth
    • 1
  • K. -H. Glander
    • 1
  • S. Goers
    • 1
  • J. Hannappel
    • 1
  • N. Jöpen
    • 1
  • F. Klein
    • 1
  • E. Klempt
    • 2
  • D. Menze
    • 1
  • E. Paul
    • 1
  • W. J. Schwille
    • 1
  1. 1.Physikalisches Institut der Universität BonnBonnGermany
  2. 2.Helmholtz-Institut für Strahlen- und KernphysikUniversität BonnBonnGermany
  3. 3.IFB AGKölnGermany
  4. 4.TÜV NordHamburgGermany
  5. 5.TRW Automotive GmbHAlfdorfGermany

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