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

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• 作者：G. Agakishiev (6)
  A. Balanda (3)
  D. Belver (16)
  A. V. Belyaev (6)
  A. Blanco (2)
  M. B?hmer (9)
  J. L. Boyard (14)
  P. Cabanelas (16)
  E. Castro (16)
  J. C. Berger-Chen (8)
  S. Chernenko (6)
  T. Christ (9)
  M. Destefanis (10)
  F. Dohrmann (5)
  A. Dybczak (3)
  E. Epple (8) eliane.epple@ph.tum.de
  L. Fabbietti (89) laura.fabbietti@ph.tum.de
  O. V. Fateev (6)
  P. Finocchiaro (1)
  P. Fonte (218)
  J. Friese (9)
  I. Fr?hlich (7)
  T. Galatyuk (719)
  J. A. Garzón (16)
  R. Gernh?user (9)
  C. Gilardi (10)
  M. Golubeva (11)
  D. González-Díaz (20)
  F. Guber (11)
  M. Gumberidze (15)
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• 关键词：Strangeness – Resonances – Kaon ; nucleon interaction
• 刊名：Hyperfine Interactions
• 出版年：2012
• 出版时间：May 2012
• 年：2012
• 卷：210
• 期：1-3
• 页码：45-51
• 全文大小：274.8 KB
• 参考文献：1. Nakamura, K., et al.: J. Phys. G 37, 075021 (2010) (PDG)
  2. Hyodo, T., Jido, D.: Prog. Part. Nucl. Phys. 67, 55–98 (2012) <Occurrence Type="Bibcode"><Handle>2012PrPNP..67...55H</Handle></Occurrence>
  3. Agakishiev, G., et al.: Eur. Phys. J. A 4, 243–277 (2009) (HADES Coll.) <Occurrence Type="Bibcode"><Handle>2009EPJA...41..243A</Handle></Occurrence>
  4. Siebenson, J.: AIP Conf. Proc. 1322, 389–393 (2010) (HADES Coll.) <Occurrence Type="Bibcode"><Handle>2010AIPC.1322..389S</Handle></Occurrence>
  5. Epple, E.: Int. J. Mod. Phys. A 26, 616–618 (2011) (HADES Coll.) <Occurrence Type="Bibcode"><Handle>2011IJMPA..26..616E</Handle></Occurrence>
  6. Agakishiev, G.: Baryonic resonances close to the N threshold: the case of Σ(1385)?+? in pp collisions, submitted to PRC. arXiv:1109.6806 (HADES Coll.)
  7. Abdel-Bary, M.: Eur. Phys. J. A 46, 27–44 (2010) (COSY-TOF Coll.) <Occurrence Type="Bibcode"><Handle>2010EPJA...46...27A</Handle></Occurrence>
  8. Zychor, I., et al.: Phys. Lett. B 660, 167–171 (2008) <Occurrence Type="Bibcode"><Handle>2008PhLB..660..167Z</Handle></Occurrence>
• 作者单位：1. Istituto Nazionale di Fisica Nucleare - Laboratori Nazionali del Sud, 95125 Catania, Italy2. LIP-Laboratório de Instrumenta??o e Física Experimental de Partículas, 3004-516 Coimbra, Portugal3. Smoluchowski Institute of Physics, Jagiellonian University of Cracow, 30-059 Kraków, Poland4. GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany5. Institut für Strahlenphysik, Forschungszentrum Dresden-Rossendorf, 01314 Dresden, Germany6. Joint Institute of Nuclear Research, 141980 Dubna, Russia7. Institut für Kernphysik, Goethe-Universit?t, 60438 Frankfurt, Germany8. Excellence Cluster ‘Origin and Structure of the Universe- 85748 Garching, Germany9. Physik Department E12, Technische Universit?t München, 85748 Garching, Germany10. II.Physikalisches Institut, Justus Liebig Universit?t Giessen, 35392 Giessen, Germany11. Institute for Nuclear Research, Russian Academy of Science, 117312 Moscow, Russia12. Department of Physics, University of Cyprus, 1678 Nicosia, Cyprus13. Frederick University, 1036 Nicosia, Cyprus14. Institut de Physique Nucléaire (UMR 8608), CNRS/IN2P3 - Université Paris Sud, 91406 Orsay Cedex, France15. Nuclear Physics Institute, Academy of Sciences of Czech Republic, 25068 Rez, Czech Republic16. Departamento de Física de Partículas, Univ. de Santiago de Compostela, 15706 Santiago de Compostela, Spain17. Lawrence Berkeley National Laboratory, Berkeley, USA18. ISEC Coimbra, Coimbra, Portugal19. ExtreMe Matter Institute EMMI, 64291 Darmstadt, Germany20. Technische Univesit?t Darmstadt, Darmstadt, Germany21. Technische Univesit?t Dresden, 01062 Dresden, Germany22. Dipartimento di Fisica, Università di Milano, 20133 Milano, Italy23. Dipartimento di Fisica Generale and INFN, Università di Torino, 10125 Torino, Italy24. Istituto Nazionale di Fisica Nucleare, Sezione di Milano, 20133 Milano, Italy
• 刊物类别：Physics and Astronomy
• 刊物主题：Physics
  Nuclear Physics, Heavy Ions and Hadrons
  Atoms, Molecules, Clusters and Plasmas
  Condensed Matter
  Surfaces and Interfaces and Thin Films
  
• 出版者：Springer Netherlands
• ISSN：1572-9540

文摘

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 E_kin = 3.5 GeV measured with HADES. Upper and lower limits have been determined for the ratio s_{(S(1385)0+p+K+)}/s_{(L(1405)+p+K+)}=0.76_-0.26+0.54\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.