Skip to main content
SpringerLink
Log in

Observation of a resonance in the KSp decay channel at a mass of 1765 MeV/c2

  • Regular Article - Experimental Physics
  • Published:
The European Physical Journal C Aims and scope Submit manuscript

Abstract

We report on the observation of a KSp resonance signal at a mass of 1765 ± 5 MeV/c 2, with intrinsic width Γ = 108 ± 22 MeV/c 2, produced inclusively in Σ--nucleus interactions at 340 GeV/c in the hyperon beam experiment WA89 at CERN. The signal was observed in the kinematic region xF>0.7, in this region its production cross section rises approximately linearly with (1-xF), reaching BR(X→KSp)dσ/dxF=(5.2±2.3)μb per nucleon at xF=0.8. The hard xF spectrum suggests the presence of a strong leading particle effect in the production and hence the identification as a Σ*+ state. No corresponding peaks were observed in the K-p and Λπ± mass spectra.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. Particle Data Group, W.-M. Yao et al., J. Phys. G 33, 1 (2006)

    Article  ADS  Google Scholar 

  2. WA89 Collaboration, M.I. Adamovich et al., Eur. Phys. J. C 22, 255 (2001)

    Article  ADS  Google Scholar 

  3. WA89 Collaboration, M.I. Adamovich et al., Phys. Rev. C 72, 055201 (2005)

    Article  ADS  Google Scholar 

  4. Y.A. Alexandrov et al., Nucl. Instrum. Methods A 408, 359 (1998)

    Article  Google Scholar 

  5. W. Beusch, CERN/SPSC/77-70

  6. W. Beusch et al., Nucl. Instrum. Methods A 323, 373 (1992)

    Article  ADS  Google Scholar 

  7. U. Müller et al., Nucl. Instrum. Methods A 371, 27 (1996)

    Article  ADS  Google Scholar 

  8. SPHINX Collaboration, Y. Antipov et al., Eur. Phys. J. A 21, 455 (2004)

    Article  ADS  Google Scholar 

  9. G.J. Feldman, R.D. Cousins, Phys. Rev. D 57, 3873 (1998)

    Article  ADS  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Moscow Lebedev Physics Institute, 117924, Moscow, Russia

    M.I. Adamovich, Y.A. Alexandrov, S.P. Baranov, S.G. Gerassimov, I. Konorov & M.V. Zavertyaev

  2. Dipartimento di Fisica and I.N.F.N, Sezione di Genova, 16146, Genova, Italy

    D. Barberis, R.B. Hurst & L. Rossi

  3. Max-Planck-Institut für Kernphysik Heidelberg, 69029, Heidelberg, Germany

    M. Beck, S. Brons, W. Brückner, C. Büscher, U. Dersch, F. Dropmann, S.G. Gerassimov, M. Godbersen, T. Haller, M. Heidrich, E. Hubbard, K. Königsmann, I. Konorov, S. Masciocchi, R. Michaels, H. Neeb, S. Paul, J. Pochodzalla, I. Potashnikova, B. Povh, Z. Ren, A. Trombini, K. Vorwalter, R. Werding & E. Wittmann

  4. Institut des Sciences Nucléaires, Université de Grenoble, 38026, Grenoble Cedex, France

    C. Bérat, M. Buénerd, F. Charignon, J. Chauvin, A. Fournier, P. Martin, M. Rey-Campagnolle & E. Vesin

  5. CERN, 1211, Genève 23, Switzerland

    W. Beusch & P. Grafström

  6. Physikalisches Institut, Universität Heidelberg, 69120, Heidelberg, Germany

    M. Boss, C. Busch, E.A. Chudakov, J. Engelfried, F. Faller, N. Keller, K. Martens, H.-W. Siebert, A. Simon, O. Thilmann & G. Wälder

  7. Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, Johann-Joachim-Becher-Weg 45, 55099, Mainz, Germany

    U. Müller, J. Pochodzalla, G. Rosner, H. Rudolph, L. Schmitt, H.-W. Siebert, B. Volkemer & T. Walcher

  8. University of Bristol, Bristol, BS8 1TL, UK

    D. Newbold & V. Smith

  9. TRIUMF, Vancouver, B.C., V6T 2A3, Canada

    S. Brons

  10. Thomas Jefferson Lab, Newport News, VA, 23606, USA

    E.A. Chudakov & R. Michaels

  11. Instituto de Fisica, Universidad Autonoma de San Luis Potosi, San Luis Potosi, 78240, Mexico

    J. Engelfried

  12. Fraunhofer Institut für Solare Energiesysteme, 79100, Freiburg, Germany

    F. Faller

  13. Physik Department E18, Technische Universität München, 85747, Garching, Germany

    S.G. Gerassimov, I. Konorov & S. Paul

  14. Fakultät für Physik, Universität Freiburg, Freiburg, Germany

    K. Königsmann & A. Simon

  15. Department of Physics, University of Utah, Salt Lake City, Utah, USA

    K. Martens

  16. Gesellschaft für Schwerionenforschung, 64291, Darmstadt, Germany

    S. Masciocchi & L. Schmitt

  17. University of Iowa, Iowa City, Iowa, 52242, USA

    C. Newsom

  18. Department of Physics and Astronomy, University of Glasgow, Glasgow, G12 8QQ, UK

    G. Rosner

  19. NIKHEF, 1009 D8, Amsterdam, The Netherlands

    C. Scheel

Authors
  1. M.I. Adamovich
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Y.A. Alexandrov
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. S.P. Baranov
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. D. Barberis
    View author publications

    You can also search for this author in PubMed Google Scholar

  5. M. Beck
    View author publications

    You can also search for this author in PubMed Google Scholar

  6. C. Bérat
    View author publications

    You can also search for this author in PubMed Google Scholar

  7. W. Beusch
    View author publications

    You can also search for this author in PubMed Google Scholar

  8. M. Boss
    View author publications

    You can also search for this author in PubMed Google Scholar

  9. S. Brons
    View author publications

    You can also search for this author in PubMed Google Scholar

  10. W. Brückner
    View author publications

    You can also search for this author in PubMed Google Scholar

  11. M. Buénerd
    View author publications

    You can also search for this author in PubMed Google Scholar

  12. C. Busch
    View author publications

    You can also search for this author in PubMed Google Scholar

  13. C. Büscher
    View author publications

    You can also search for this author in PubMed Google Scholar

  14. F. Charignon
    View author publications

    You can also search for this author in PubMed Google Scholar

  15. J. Chauvin
    View author publications

    You can also search for this author in PubMed Google Scholar

  16. E.A. Chudakov
    View author publications

    You can also search for this author in PubMed Google Scholar

  17. U. Dersch
    View author publications

    You can also search for this author in PubMed Google Scholar

  18. F. Dropmann
    View author publications

    You can also search for this author in PubMed Google Scholar

  19. J. Engelfried
    View author publications

    You can also search for this author in PubMed Google Scholar

  20. F. Faller
    View author publications

    You can also search for this author in PubMed Google Scholar

  21. A. Fournier
    View author publications

    You can also search for this author in PubMed Google Scholar

  22. S.G. Gerassimov
    View author publications

    You can also search for this author in PubMed Google Scholar

  23. M. Godbersen
    View author publications

    You can also search for this author in PubMed Google Scholar

  24. P. Grafström
    View author publications

    You can also search for this author in PubMed Google Scholar

  25. T. Haller
    View author publications

    You can also search for this author in PubMed Google Scholar

  26. M. Heidrich
    View author publications

    You can also search for this author in PubMed Google Scholar

  27. E. Hubbard
    View author publications

    You can also search for this author in PubMed Google Scholar

  28. R.B. Hurst
    View author publications

    You can also search for this author in PubMed Google Scholar

  29. K. Königsmann
    View author publications

    You can also search for this author in PubMed Google Scholar

  30. I. Konorov
    View author publications

    You can also search for this author in PubMed Google Scholar

  31. N. Keller
    View author publications

    You can also search for this author in PubMed Google Scholar

  32. K. Martens
    View author publications

    You can also search for this author in PubMed Google Scholar

  33. P. Martin
    View author publications

    You can also search for this author in PubMed Google Scholar

  34. S. Masciocchi
    View author publications

    You can also search for this author in PubMed Google Scholar

  35. R. Michaels
    View author publications

    You can also search for this author in PubMed Google Scholar

  36. U. Müller
    View author publications

    You can also search for this author in PubMed Google Scholar

  37. H. Neeb
    View author publications

    You can also search for this author in PubMed Google Scholar

  38. D. Newbold
    View author publications

    You can also search for this author in PubMed Google Scholar

  39. C. Newsom
    View author publications

    You can also search for this author in PubMed Google Scholar

  40. S. Paul
    View author publications

    You can also search for this author in PubMed Google Scholar

  41. J. Pochodzalla
    View author publications

    You can also search for this author in PubMed Google Scholar

  42. I. Potashnikova
    View author publications

    You can also search for this author in PubMed Google Scholar

  43. B. Povh
    View author publications

    You can also search for this author in PubMed Google Scholar

  44. Z. Ren
    View author publications

    You can also search for this author in PubMed Google Scholar

  45. M. Rey-Campagnolle
    View author publications

    You can also search for this author in PubMed Google Scholar

  46. G. Rosner
    View author publications

    You can also search for this author in PubMed Google Scholar

  47. L. Rossi
    View author publications

    You can also search for this author in PubMed Google Scholar

  48. H. Rudolph
    View author publications

    You can also search for this author in PubMed Google Scholar

  49. C. Scheel
    View author publications

    You can also search for this author in PubMed Google Scholar

  50. L. Schmitt
    View author publications

    You can also search for this author in PubMed Google Scholar

  51. H.-W. Siebert
    View author publications

    You can also search for this author in PubMed Google Scholar

  52. A. Simon
    View author publications

    You can also search for this author in PubMed Google Scholar

  53. V. Smith
    View author publications

    You can also search for this author in PubMed Google Scholar

  54. O. Thilmann
    View author publications

    You can also search for this author in PubMed Google Scholar

  55. A. Trombini
    View author publications

    You can also search for this author in PubMed Google Scholar

  56. E. Vesin
    View author publications

    You can also search for this author in PubMed Google Scholar

  57. B. Volkemer
    View author publications

    You can also search for this author in PubMed Google Scholar

  58. K. Vorwalter
    View author publications

    You can also search for this author in PubMed Google Scholar

  59. T. Walcher
    View author publications

    You can also search for this author in PubMed Google Scholar

  60. G. Wälder
    View author publications

    You can also search for this author in PubMed Google Scholar

  61. R. Werding
    View author publications

    You can also search for this author in PubMed Google Scholar

  62. E. Wittmann
    View author publications

    You can also search for this author in PubMed Google Scholar

  63. M.V. Zavertyaev
    View author publications

    You can also search for this author in PubMed Google Scholar

Consortia

The WA89 Collaboration

Corresponding author

Correspondence to J. Pochodzalla.

Additional information

PACS

25.80.-e; 13.60.Rj; 14.20.Jn

Rights and permissions

Reprints and permissions

About this article

Cite this article

Adamovich, M., Alexandrov, Y., Baranov, S. et al. Observation of a resonance in the KSp decay channel at a mass of 1765 MeV/c2 . Eur. Phys. J. C 50, 535–538 (2007). https://doi.org/10.1140/epjc/s10052-007-0284-9

Download citation

  • Received:

  • Revised:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1140/epjc/s10052-007-0284-9

Keywords

Search

Navigation