Advertisement

The rôle of diquarks in exclusive scattering

  • P. Kroll
  • M. Schürmann
  • W. Schweiger
Conference paper
Part of the Lecture Notes in Physics book series (LNP, volume 417)

Abstract

The quark-diquark picture of baryons, as emerged from a perturbative description of exclusive hadronic processes at a few GeV of momentum transfer, is reviewed. Various reactions already treated within the diquark model are discussed. Special emphasis is put on Compton scattering off protons and photoproduction of mesons.

Keywords

Diquarks perturbative QCD exclusive reactions baryon form factors Compton scattering photoproduction 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    For a recent survey, see: Perturbative Quantum Chromodynamics, edited by A.H. Mueller (World Scientific, Singapore, 1989).Google Scholar
  2. 2.
    G.P. Lepage and S.J. Brodsky: Phys.Rev. D22, 2157 (1980).Google Scholar
  3. 3.
    N. Isgur and C.H. Llewellyn Smith: Nucl.Phys. B317, 526 (1989).Google Scholar
  4. 4.
    V.A. Avdeenko, S.E. Korenblit, and V.L. Chernyak: Sov.J.Nucl.Phys. 33, 252 (1981).Google Scholar
  5. 5.
    V.L. Chernyak and I.R. Zhitnitsky: Nucl.Phys. B246, 52 (1984).Google Scholar
  6. 6.
    N.G. Stefanis: Phys.Rev. D40, 2305 (1989).Google Scholar
  7. 7.
    M. Gari and N.G. Stefanis: Phys.Lett. B175, 462 (1986).Google Scholar
  8. 8.
    Z. Dziembowski and J. Franklin: Phys.Rev. D42, 905 (1990); see also Z.Dziembowski: these proceedings.Google Scholar
  9. 9.
    S.J. Brodsky and G.R. Farrar: Phys.Rev.Lett. 31, 1153 (1973)Google Scholar
  10. 9a.
    V.A. Matveev, R.M. Muradyan, A.V. Tavkhelidze, Lett.Nuovo Cim. 7, 719 (1973).Google Scholar
  11. 10.
    S.J. Brodsky and G.P. Lepage: Phys.Rev. D24, 2848 (1981).Google Scholar
  12. 11.
    W.A. Crabb et al.: Phys.Rev.Lett.65, 3241 (1990).Google Scholar
  13. 12.
    See also other contributions in this volume.Google Scholar
  14. 13.
    P. Kroll, M. Schiirmann, and W. Schweiger: Int.J.Mod.Phys. A6, 4107 (1991).Google Scholar
  15. 14.
    T. Huang: Nucl.Phys.(Proc.Suppl.) 7B, 320 (1989).Google Scholar
  16. 15.
    J.J. Aubert et al.: Phys.Lett. B95, 306 (1980).Google Scholar
  17. 16.
    P. Kroll, M. Schürmann, and W. Schweiger: Z.Phys. A338, 339 (1991).Google Scholar
  18. 17.
    R.G. Arnold et al.: Phys.Rev.Lett. 57, 174 (1986).Google Scholar
  19. 18.
    S. Rock et al.: Phys.Rev.Lett. 49, 1139 (1982).Google Scholar
  20. 19.
    J.G. Körner and M. Kuroda: Phys.Rev. D16, 2165 (1977).Google Scholar
  21. 20.
    M.A. Shupe et al.: Phys.Rev. D19, 1921 (1979).Google Scholar
  22. 21.
    G.R. Farrar and H. Zhang: Phys.Rev. D41, 3348 (1990).Google Scholar
  23. 22.
    A.S. Kronfeld and B. Nižic: Phys.Rev. D44, 3345 (1991).Google Scholar
  24. 23.
    G.R. Farrar, G. Sterman, and H. Zhang: Phys.Rev. D14, 679 (1976).Google Scholar
  25. 25.
    M.Schürmann: thesis; paper in preparation.Google Scholar
  26. 26.
    I.S. Barker et al.: Nucl.Phys. B95, 347 (1975).Google Scholar
  27. 27.
    X.H. Guo and T. Huang: Phys.Rev. D43, 2931 (1991).Google Scholar
  28. 28.
    G.R. Farrar, K. Huleihel, and H. Zhang: Nucl.Phys. B349, 655 (1991).Google Scholar
  29. 29.
    P. Kroll, M. Schürmann, and W. Schweiger: Z.Phys. A342, 429 (1992).Google Scholar
  30. 30.
    P.Kroll: preprint WU uppertal (1991)Google Scholar
  31. 30a.
    P.Kroll, M.Schürmann, and W.Schweiger: in preparation.Google Scholar
  32. 31.
    J.G.Körner and P.Kroll: preprint DESY 92-019; J.G.Körner: these proceedings.Google Scholar
  33. 32.
    M. Anselmino et al.: Phys.Rev. D44, 1438 (1991)Google Scholar
  34. 32a.
    M.Anselmino: these proceedings.Google Scholar
  35. 33.
    M. Anselmino, P. Kroll, and B. Pire: Z.Phys. C36, 89 (1987).Google Scholar
  36. 34.
    P. Kroll and W. Schweiger: Nucl.Phys. A474, 608 (1987)Google Scholar
  37. 35.
    P. Kroll, B. Quadder, and W. Schweiger: Nucl.Physc. B316, 373 (1989).Google Scholar

Copyright information

© Springer-Verlag 1992

Authors and Affiliations

  • P. Kroll
    • 1
  • M. Schürmann
    • 1
  • W. Schweiger
    • 2
  1. 1.Department of PhysicsUniversity of WuppertalWuppertal
  2. 2.Institute of Theoretical PhysicsUniversity of GrazGrazAustria

Personalised recommendations