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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
  • University of Manchester
  • P.N. Lebedev Physical Institute of the Russian Academy of Sciences
  • c/o DESY
  • Institute for Theoretical and Experimental Physics
  • 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
  • University of Dortmund
  • University of Heidelberg
  • Aix-Marseille Université
  • Max-Planck-Institut für Physik
  • CCLRC Rutherford Appleton Laboratory
  • Lancaster University
  • University of Liverpool
  • Institute of Physics of the Czech Academy of Sciences
  • Christian-Albrechts-University Kiel
  • Bergische Universität Gesamthochschule Wuppertal
  • Dipartimento di Fisica
  • University of California, Davis
  • Physik-Institut der Universität Zürich
  • University of Birmingham
  • ETH Zurich
  • Queen Mary University of London
  • Charles University
  • Paul Scherrer Institut
  • Institute for Nuclear Physics
  • Lund University
  • University of Glasgow

Résultats de recherche: Contribution à un journalArticleRevue par des pairs

Résumé

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.

langue originaleAnglais
Pages (de - à)3-34
Nombre de pages32
journalNuclear Physics B
Volume480
Numéro de publication1-2
Les DOIs
étatPublié - 25 nov. 1996

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