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Determination of the Σ(1385)0/Λ(1405) ratio in p+p collisions at 3.5 GeV

  • Conference paper
EXA 2011

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Abstract

The aim of the present analysis is to determine the relative production cross sections of the Λ(1405) and Σ(1385)0 resonances in p+p collisions at Ekin = 3.5 GeV measured with HADES. Upper and lower limits have been determined for the ratio \(\sigma_{(\Sigma(1385)^{0}+p+K^{+})}/\sigma_{(\Lambda(1405)+p+K^{+})}=0.76_{-0.26}^{+0.54}\). The knowledge of this ratio is an essential input for the analysis of the decay Λ(1405)→Σ± π  ∓ , where an unambiguous separation of the Λ(1405) and Σ(1385)0 signals is not possible.

A. Balanda and I. Iori (Deceased)

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Author information

Authors and Affiliations

  1. Istituto Nazionale di Fisica Nucleare - Laboratori Nazionali del Sud, 95125, Catania, Italy

    P. Finocchiaro

  2. LIP-Laboratório de Instrumentação e Física Experimental de Partículas, 3004-516, Coimbra, Portugal

    A. Blanco, P. Fonte, L. Lopes & A. Mangiarotti

  3. Smoluchowski Institute of Physics, Jagiellonian University of Cracow, 30-059, Kraków, Poland

    A. Balanda, A. Dybczak, H. Kuc, B. Michalska, J. Otwinowski, M. Palka, W. Przygoda, P. Salabura & R. Trebacz

  4. GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291, Darmstadt, Germany

    T. Heinz, R. Holzmann, I. Koenig, W. Koenig, B. W. Kolb, S. Lang, V. Pechenov, E. Schwab, J. Stroth, C. Sturm, M. Traxler & S. Yurevich

  5. Institut für Strahlenphysik, Forschungszentrum Dresden-Rossendorf, 01314, Dresden, Germany

    F. Dohrmann, B. Kämpfer, K. Kanaki, R. Kotte, L. Naumann, C. Wendisch & J. Wüstenfeld

  6. Joint Institute of Nuclear Research, 141980, Dubna, Russia

    G. Agakishiev, A. V. Belyaev, S. Chernenko, O. V. Fateev, A. Ierusalimov & Y. V. Zanevsky

  7. Institut für Kernphysik, Goethe-Universität, 60438, Frankfurt, Germany

    I. Fröhlich, T. Galatyuk, M. Lorenz, J. Markert, J. Michel, C. Müntz, Y. C. Pachmayer, O. Pechenova, J. Pietraszko, A. Rustamov, H. Ströbele, J. Stroth, A. Tarantola & K. Teilab

  8. Excellence Cluster ‘Origin and Structure of the Universe’, 85748, Garching, Germany

    J. C. Berger-Chen, E. Epple, L. Fabbietti, R. Lalik, K. Lapidus, A. Schmah & J. Siebenson

  9. Physik Department E12, Technische Universität München, 85748, Garching, Germany

    M. Böhmer, T. Christ, L. Fabbietti, J. Friese, R. Gernhäuser, M. Jurkovic, R. Krücken, L. Maier & M. Weber

  10. II.Physikalisches Institut, Justus Liebig Universität Giessen, 35392, Giessen, Germany

    M. Destefanis, C. Gilardi, W. Kühn, J. S. Lange, V. Metag & B. Spruck

  11. Institute for Nuclear Research, Russian Academy of Science, 117312, Moscow, Russia

    M. Golubeva, F. Guber, A. Ivashkin, T. Karavicheva, A. Kurepin, A. Reshetin & A. Sadovsky

  12. Department of Physics, University of Cyprus, 1678, Nicosia, Cyprus

    J. Mousa & Y. Parpottas

  13. Frederick University, 1036, Nicosia, Cyprus

    Y. Parpottas & H. Tsertos

  14. Institut de Physique Nucléaire (UMR 8608), CNRS/IN2P3 - Université Paris Sud, 91406, Orsay Cedex, France

    J. L. Boyard, T. Hennino, H. Kuc, T. Liu, E. Morinière & B. Ramstein

  15. Nuclear Physics Institute, Academy of Sciences of Czech Republic, 25068, Rez, Czech Republic

    M. Gumberidze, A. Krása, F. Krizek, A. Kugler, Yu. G. Sobolev & P. Tlusty

  16. Departamento de Física de Partículas, Univ. de Santiago de Compostela, 15706, Santiago de Compostela, Spain

    D. Belver, P. Cabanelas, E. Castro, J. A. Garzón & V. Wagner

  17. Lawrence Berkeley National Laboratory, Berkeley, USA

    A. Schmah

  18. ISEC Coimbra, Coimbra, Portugal

    P. Fonte

  19. ExtreMe Matter Institute EMMI, 64291, Darmstadt, Germany

    T. Galatyuk

  20. Technische Univesität Darmstadt, Darmstadt, Germany

    D. González-Díaz

  21. Technische Univesität Dresden, 01062, Dresden, Germany

    B. Kämpfer

  22. Dipartimento di Fisica, Università di Milano, 20133, Milano, Italy

    I. Iori

  23. Dipartimento di Fisica Generale and INFN, Università di Torino, 10125, Torino, Italy

    S. Spataro

  24. Istituto Nazionale di Fisica Nucleare, Sezione di Milano, 20133, Milano, Italy

    I. Iori

Authors
  1. G. Agakishiev
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  2. A. Balanda
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  4. A. V. Belyaev
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  16. E. Epple
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  17. L. Fabbietti
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  18. O. V. Fateev
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  19. P. Finocchiaro
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  20. P. Fonte
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  21. J. Friese
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  22. I. Fröhlich
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  23. T. Galatyuk
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  24. J. A. Garzón
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  26. C. Gilardi
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Corresponding author

Correspondence to E. Epple .

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Editors and Affiliations

  1. Austrian Academy of Sciences S. Meyer Inst. for Subatomic Physics, Boltzmanngasse 3, 1090, Wien, Austria

    Paul Bühler

  2. Österreichische Akademie der Wissenschaften (ÖAW) Stefan-Meyer-Institut für Subatomare Physik, Boltzmanngasse 3, 1090, Wien, Austria

    Olaf Hartmann , Johann Marton , Ken Suzuki , Eberhard Widmann  & Johann Zmeskal , , ,  & 

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Agakishiev, G. et al. (2012). Determination of the Σ(1385)0/Λ(1405) ratio in p+p collisions at 3.5 GeV. In: Bühler, P., Hartmann, O., Marton, J., Suzuki, K., Widmann, E., Zmeskal, J. (eds) EXA 2011. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-4890-3_32

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