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Direct soft photon production inK + p andπ + p interactions at 250 GeV/c

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Zeitschrift für Physik C Particles and Fields

Abstract

Inclusive production of direct soft photons is studied inK + p andK + π interactions at 250 GeV/c. Total cross sections, Feynman-x and transverse momentum distributions of direct γ's are presented. The measured cross sections are several times larger than expected from QED inner bremsstrahlung, indicating the presence of an anomalous soft photon source. The model of Lichard and Van Hove, based on the “cold quark-gluon plasma” picture, agrees with the data.

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Author information

Author notes

  1. T. Haupt

    Present address: Bevoegdverklaard Navorser NFWO, Belgium

  2. A. De Roeck

    Present address: Syracuse University, 13244-1130, Syracuse, NY

Authors and Affiliations

  1. Inter-University Institute for High Energies, Universitaire Instelling Antwerpen, B-1050, Brussels, Belgium

    M. Charlet (EEC Guest Scientist), A. De Roeck, E. A. De Wolf & F. Verbeure

  2. Dept. of Physics, Universitaire Instelling Antwerpen, B-2610, Wilrijk, Belgium

    A. De Roeck

  3. Institut für Hochenergiephysik, O-1615, Berlin-Zeuthen, Federal Republic of Germany

    R. Wischnewski

  4. Institute of Physics and Nuclear Techniques of the Academy of Mining and Metallurgy and Institute of Nuclear Physics, PL-30055, Krakow, Poland

    K. Dziunikowska, A. Eskreys & K. Olkiewicz

  5. Moscow State University, SU-117234, Moscow, USSR

    L. N. Smirnova, L. A. Tikhonova & S. A. Zotkin

  6. University of Nijmegen and NIKHEF-H, NL-6525 ED, Nijmegen, The Netherlands

    F. Botterweck, T. Haupt & W. Kittel

  7. Institute for High Energy Physics, SU-142284, Serpukhov, USSR

    M. M. Chapkin, P. V. Chliapnikov, I. V. Nikolaenko, V. M. Ronjin, O. G. Tchikilev & V. A. Uvarov

  8. Institute for High Energy Physics, Tbilisi State University, SU-380086, Tbilisi, USSR

    Z. C. Garutchava

  9. Institute of Physics, SU-375036, Yerevan, USSR

    G. R. Gulkanyan & L. P. Kishinevskaya

  10. Onderzoeker IIKW, Brussels, Belgium

    A. De Roeck

Authors
  1. F. Botterweck
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  2. M. M. Chapkin
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  3. M. Charlet
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  4. P. V. Chliapnikov
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  5. A. De Roeck
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  6. E. A. De Wolf
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  7. K. Dziunikowska
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  8. A. Eskreys
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  9. Z. C. Garutchava
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  10. G. R. Gulkanyan
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  11. T. Haupt
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  14. I. V. Nikolaenko
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  16. V. M. Ronjin
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  17. L. N. Smirnova
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  18. O. G. Tchikilev
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  20. V. A. Uvarov
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  22. R. Wischnewski
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EHS-NA22 Collaboration

Additional information

Dedicated to the memory of Léon Van Hove

Partially supported by grants from CPBP 01.06 and 01.09

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EHS-NA22 Collaboration., Botterweck, F., Chapkin, M.M. et al. Direct soft photon production inK + p andπ + p interactions at 250 GeV/c. Z. Phys. C - Particles and Fields 51, 541–548 (1991). https://doi.org/10.1007/BF01565578

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  • DOI: https://doi.org/10.1007/BF01565578

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