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Analysis of Θproduction in K+- Xe collisions

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Abstract.

The reaction K+Xe↦K0pX is investigated in a meson-exchange model including rescattering of the secondary protons with the aim to analyze the evidence for the Θ+(1540)-resonance reported by the DIANA Collaboration. We confirm that the kinematical cuts introduced by the DIANA Collaboration efficiently suppress the background to the K+n↦K0p reaction which may contribute to the Θ+(1540) production. We find that these kinematical cuts do not produce a narrow structure in the K0p effective-mass spectra near 1540 MeV. We study the effect of a narrow Θ+-resonance of both positive and negative parity in comparison with the DIANA data. We show that the K+Xe↦K0pX calculations without Θ+ contribution as well as the results obtained with a Θ+ width of 1 MeV are in comparably good agreement with the DIANA results. More dedicated experiments are called for to establish this exotic baryon resonance.

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References

  1. T. Nakano, Phys. Rev. Lett. 91, 012002 (2003).

    Article  Google Scholar 

  2. V.V. Barmin, Phys. At. Nucl. 66, 1715 (2003), hep-ex/0304040.

    Article  Google Scholar 

  3. R. Büttgen, K. Holinde, A. Müller--Groeling, J. Speth, P. Wyborny, Nucl. Phys. A 506, 586 (1990).

    Article  Google Scholar 

  4. M. Hoffmann, J.W. Durso, K. Holinde, B.C. Pearce, J. Speth, Nucl. Phys. A 593, 341 (1995).

    Article  Google Scholar 

  5. J. Haidenbauer, G. Krein, Phys. Rev. C 68, 052201 (2003).

    Article  Google Scholar 

  6. A. Sibirtsev, J. Haidenbauer, S. Krewald, Ulf-G. Meißner, Phys. Lett. B 599, 230 (2004).

    Article  Google Scholar 

  7. R. Machleidt, K. Holinde, Ch. Elster, Phys. Rep. 149, 1 (1987).

    Google Scholar 

  8. B. Holzenkamp, K. Holinde, J. Speth, Nucl. Phys. A 500, 485 (1989).

    Article  Google Scholar 

  9. T. Bowen, Phys. Rev. D 2, 2599 (1970).

    Article  Google Scholar 

  10. R.L. Cool, Phys. Rev. D 1, 1887 (1970).

    Article  Google Scholar 

  11. A.S. Carroll, Phys. Lett. B 45, 531 (1973).

    Article  Google Scholar 

  12. T. Bowen, Phys. Rev. D 7, 22 (1973).

    Article  Google Scholar 

  13. C. Gale, G. Bertsch, S. Das Gupta, Phys. Rev. C 35, 1666 (1987).

    Article  Google Scholar 

  14. G.M. Welke, Phys. Rev. C 38, 2101 (1988).

    Article  Google Scholar 

  15. S. Frullani, J. Mougey, Adv. Nucl. Phys. 14, 1 (1984).

    Google Scholar 

  16. C. Ciofi degli Atti, S. Simula, Phys. Rev. C 53, 1689 (1996).

    Article  Google Scholar 

  17. A. Sibirtsev, W. Cassing, U. Mosel, Z. Phys. A 358, 357 (1997).

    Article  Google Scholar 

  18. A. Sibirtsev, W. Cassing, U. Mosel, Nucl. Phys. A 679, 497 (2001).

    Article  Google Scholar 

  19. O. Benhar, A. Fabrocini, S. Fantoni, Nucl. Phys. A 505, 267 (1989).

    Article  Google Scholar 

  20. I. Sick, S. Fantoni, A. Fabrocini, O. Benhar, Phys. Lett. B 323, 267 (1994).

    Article  Google Scholar 

  21. R.J. Glauber, G. Mattia, Nucl. Phys. B21, 135 (1970).

  22. A.G. Sitenko, Lectures in Scattering Theory (Pergamon Press Ltd., Oxford, 1971)

  23. V.N. Gribov, Sov. Phys. JETP 29, 483 (1969).

    Google Scholar 

  24. Particle Data Group, Phys. Lett. B 592, 1 (2004).

    Article  Google Scholar 

Download references

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Authors and Affiliations

  1. Institut für Kernphysik (Theorie), Forschungszentrum Jülich, D-52425, Jülich, Germany

    A. Sibirtsev, J. Haidenbauer, S. Krewald & Ulf-G. Meißner

  2. Helmholtz-Institut für Strahlen- und Kernphysik (Theorie), Universität Bonn, Nußallee 14-16, D-53115, Bonn, Germany

    Ulf-G. Meißner

Authors
  1. A. Sibirtsev
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  2. J. Haidenbauer
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  3. S. Krewald
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  4. Ulf-G. Meißner
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Th. Walcher

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Sibirtsev, A., Haidenbauer, J., Krewald, S. et al. Analysis of Θproduction in K+- Xe collisions. Eur. Phys. J. A 23, 491–499 (2005). https://doi.org/10.1140/epja/i2004-10094-8

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  • DOI: https://doi.org/10.1140/epja/i2004-10094-8

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