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Strangeness production in deep-inelastic positron-proton scattering at HERA

  • S. Aid
  • , M. Anderson
  • , V. Andreev
  • , B. Andrieu
  • , R. D. Appuhn
  • , A. Babaev
  • , J. Bähr
  • , J. Bán
  • , Y. Ban
  • , P. Baranov
  • , E. Barrelet
  • , R. Barschke
  • , W. Bartel
  • , M. Barth
  • , U. Bassler
  • , H. J. Behrend
  • , A. Belousov
  • , Ch Berger
  • , G. Bernardi
  • , G. Bertrand-Coremans
  • M. Besançon, R. Beyer, P. Biddulph, P. Bispham, J. C. Bizot, V. Blobel, K. Borras, F. Botterweck, V. Boudry, A. Braemer, W. Braunschweig, V. Brisson, P. Bruel, D. Bruncko, C. Brune, R. Buchholz, L. Büngener, J. Bürger, F. W. Büsser, A. Buniatian, S. Burke, M. J. Burton, D. Calvet, A. J. Campbell, T. Carli, M. Charlet, D. Clarke, A. B. Clegg, B. Clerbaux, S. Cocks, J. G. Contreras, C. Cormack, J. A. Coughlan, A. Courau, M. C. Cousinou, G. Cozzika, L. Criegee, D. G. Cussans, J. Cvach, S. Dagoret, J. B. Dainton, W. D. Dau, K. Daum, M. David, C. L. Davis, A. de Roeck, E. A. de Wolf, B. Delcourt, P. di Nezza, M. Dirkmann, P. Dixon, W. Dlugosz, C. Dollfus, J. D. Dowell, H. B. Dreis, A. Droutskoi, O. Dünger, H. Duhm, J. Ebert, T. R. Ebert, G. Eckerlin, V. Efremenko, S. Egli, R. Eichler, F. Eisele, E. Eisenhandler, E. Elsen, M. Erdmann, W. Erdmann, E. Evrard, A. B. Fahr, L. Favart, A. Fedotov, D. Feeken, R. Felst, J. Feltesse, J. Ferencei, F. Ferrarotto, K. Flamm, M. Fleischer, M. Flieser, G. Flügge, A. Fomenko, B. Fominykh, J. Formánek, J. M. Foster, G. Franke, E. Fretwurst, E. Gabathuler, K. Gabathuler, F. Gaede, J. Garvey, J. Gayler, M. Gebauer, H. Genzel, R. Gerhards, A. Glazov, U. Goerlach, L. Goerlich, N. Gogitidze, M. Goldberg, D. Goldner, K. Golec-Biernat, B. Gonzalez-Pineiro, I. Gorelov, C. Grab, H. Grässler, T. Greenshaw, R. K. Griffiths, G. Grindhammer, A. Gruber, C. Gruber, J. Haack, T. Hadig, D. Haidt, L. HajdGBR, M. Hampel, W. J. Haynes, G. Heinzelmann, R. C.W. Henderson, H. Henschel, I. Herynek, M. F. Hess, K. Hewitt, W. Hildesheim, K. H. Hiller, C. D. Hilton, J. Hladký, K. C. Hoeger, M. Höppner, D. Hoffmann, T. Holtom, R. Horisberger, V. L. Hudgson, M. Hütte, M. Ibbotson, H. Itterbeck, A. Jacholkowska, C. Jacobsson, M. Jaffre, J. Janoth, T. Jansen, L. Jönsson, D. P. Johnson, H. Jung, P. I.P. Kalmus, M. Kander, D. Kant, R. Kaschowitz, U. Kathage, J. Katzy, H. H. Kaufmann, O. Kaufmann, S. Kazarian, I. R. Kenyon, S. Kermiche, C. KeGBRer, C. Kiesling, M. Klein, C. Kleinwort, G. Knies, T. Köhler, J. H. Köhne, F. Kole, S. D. Kolya, V. Korbel, M. Korn, P. Kostka, S. K. Kotelnikov, T. Krämerkämper, M. W. Krasny, H. Krehbiel, D. Krücker, H. Küster, M. Kuhlen, T. Kurča, J. Kurzhöfer, D. Lacour, B. Laforge, R. Lander, M. P.J. Landon, W. Lange, U. Langenegger, J. F. Laporte, A. Lebedev, F. Lehner, S. Levonian, G. Lindström, M. Lindstroem, J. Link, F. Linsel, J. Lipinski, B. List, G. Lobo, J. W. Lomas, G. C. Lopez, V. Lubimov, D. Lüke, N. Magnussen, E. Malinovski, S. Mani, R. Maraček, P. Marage, J. Marks, R. Marshall, J. Martens, G. Martin, R. Martin, H. U. Martyn, J. Martyniak, T. Mavroidis, S. J. Maxfield, S. J. McMahon, A. Mehta, K. Meier, A. Meyer, A. Meyer, H. Meyer, J. Meyer, P. O. Meyer, A. Migliori, S. Mikocki, D. Milstead, J. Moeck, F. Moreau, J. V. Morris, E. Mroczko, D. Müller, G. Müller, K. Müller, M. Müller, P. Murín, V. Nagovizin, R. Nahnhauer, B. Naroska, Th Naumann, I. Négri, P. R. Newman, D. Newton, H. K. Nguyen, T. C. Nicholls, F. Niebergall, C. Niebuhr, Ch Niedzballa, H. Niggli, R. Nisius, G. Nowak, G. W. Noyes, M. Nyberg-Werther, M. Oakden, H. Oberlack, J. E. Olsson, D. Ozerov, P. Palmen, E. Panaro, A. Panitch, C. Pascaud, G. D. Patel, H. Pawletta, E. Peppel, E. Perez, J. P. Phillips, A. Pieuchot, D. Pitzl, G. Pope, S. Prell, K. Rabbertz, G. Rädel, P. Reimer, S. Reinshagen, H. Rick, V. Riech, J. Riedlberger, F. Riepenhausen, S. Riess, E. Rizvi, S. M. Robertson, P. Robmann, H. E. Roloff, R. Roosen, K. Rosenbauer, A. Rostovtsev, F. Rouse, C. Royon, K. Rüter, S. Rusakov, K. Rybicki, D. P.C. Sankey, P. Schacht, S. Schiek, S. Schleif, P. Schleper, W. von Schlippe, D. Schmidt, G. Schmidt, A. Schöning, V. Schröder, E. Schuhmann, B. Schwab, F. Sefkow, M. Seidel, R. Sell, A. Semenov, V. Shekelyan, I. Sheviakov, L. N. Shtarkov, G. Siegmon, U. Siewert, Y. Sirois, I. O. Skillicorn, P. Smirnov, J. R. Smith, V. Solochenko, Y. Soloviev, A. Specka, J. Spiekermann, S. Spielman, H. Spitzer, F. Squinabol, M. Steenbock, P. Steffen, R. Steinberg, H. Steiner, J. Steinhart, B. Stella, A. Stellberger, J. Stier, J. Stiewe, U. Stößlein, K. Stolze, U. Straumann, W. Struczinski, J. P. Sutton, S. Tapprogge, M. Taševský, V. Tchernyshov, S. Tchetchelnitski, J. Theissen, C. Thiebaux, G. Thompson, P. Truöl, G. Tsipolitis, J. Turnau, J. Tutas, P. Uelkes, A. Usik, S. Valkár, A. Valkárová, C. Vallée, P. van Esch, P. van Mechelen, D. Vandenplas, Y. Vazdik, P. Verrecchia, G. Villet, K. Wacker, A. Wagener, M. Wagener, A. Walther, B. Waugh, G. Weber, M. Weber, D. Wegener, A. Wegner, T. Wengler, M. Werner, L. R. West, T. Wilksen, S. Willard, M. Winde, G. G. Winter, C. Wittek, M. Wobisch, E. Wünsch, J. Žáček, D. Zarbock, Z. Zhang, A. Zhokin, P. Zini, F. Zomer, J. Zsembery, K. Zuber, M. zurNedden
  • Universität Hamburg
  • Physics Department
  • University of Manchester
  • P.N. Lebedev Physical Institute of the Russian Academy of Sciences
  • c/o DESY
  • Institute for Theoretical and Experimental Physics
  • DESY
  • Institute of Experimental Physics Slovak Academy of Sciences
  • Laboratoire de l'Accélérateur Linéaire
  • Universités Paris VI and VII
  • Inter-University Institute for High Energies ULB-VUB
  • Max-Planck-Institut für Kernphysik
  • RWTH Aachen University
  • Institut Pierre Simon Laplace, CNRS and CEA
  • Institut für Physik
  • University of Dortmund
  • University of Heidelberg
  • Institut für Hochenergiephysik
  • Aix-Marseille Université
  • Max-Planck-Institut für Physik
  • CCLRC Rutherford Appleton Laboratory
  • School of Physics and Chemistry
  • Lancaster University
  • Department of Physics
  • University of Liverpool
  • Institute of Physics of the Czech Academy of Sciences
  • Institut für Reine und Angewandte Kernphysik
  • Christian-Albrechts-University Kiel
  • Bergische Universität Gesamthochschule Wuppertal
  • Dipartimento di Fisica
  • Physics Department and IIRPA
  • University of California, Davis
  • Physik-Institut der Universität Zürich
  • School of Physics and Space Research
  • University of Birmingham
  • Institut für Teilchenphysik
  • ETH Zurich
  • Queen Mary University of London
  • Nuclear Center
  • Charles University
  • Paul Scherrer Institut
  • Institute for Nuclear Physics
  • Department of Physics
  • Lund University
  • Department of Physics and Astronomy
  • University of Glasgow

Research output: Contribution to journal › Article › peer-review

37 Citations (Scopus)

Abstract

Measurements of K0 meson and Λ baryon production in deep-inelastic positron-proton scattering (DIS) are presented in the kinematic range 10 < Q2 < 70 GeV2 and 10-4 < x < 10-2. The measurements, obtained using the H1 detector at the HERA collider, are discussed in the light of possible mechanisms for increased strangeness production at low Bjorken-x. Comparisons of the xF spectra, where xF is the fractional longitudinal momentum in the hadronic centre-of-mass frame, are made with results from electron-positron annihilation. The xF spectra and the K0 "seagull" plot are compared with previous DIS results. The mean K0 and Λ multiplicities are studied as a function of the centre-of-mass energy W and are observed to be consistent with a logarithmic increase with W when compared with previous measurements. A comparison of strangeness production in diffractive and non-diffractive DIS is made. An upper limit of 0.9 nb, at the 95% confidence level, is placed on the cross section for QCD instanton induced events.

Original languageEnglish
Pages (from-to)3-34
Number of pages32
JournalNuclear Physics B
Volume480
Issue number1-2
DOIs
Publication statusPublished - 25 Nov 1996

Keywords

  • Deep inelastic scattering
  • Strangeness production

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