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A search for squarks of Rp-violating SUSY at HERA

  • S. Aid
  • , V. Andreev
  • , B. Andrieu
  • , R. D. Appuhn
  • , M. Arpagaus
  • , A. Babaev
  • , J. Bähr
  • , J. Bán
  • , Y. Ban
  • , P. Baranov
  • , E. Barrelet
  • , R. Barschke
  • , W. Bartel
  • , M. Barth
  • , U. Bassler
  • , H. P. Beck
  • , H. J. Behrend
  • , A. Belousov
  • , Ch Berger
  • , G. Bernardi
  • R. Bernet, 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, G. Buschhorn, A. J. Campbell, T. Carli, F. Charles, 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, B. Delcourt, A. de Roeck, E. A. de Wolf, M. Dirkmann, P. Dixon, P. di Nezza, W. Dlugosz, C. Dollfus, J. D. Dowell, H. B. Dreis, A. Droutskoi, D. Düllmann, O. Dünger, H. Duhm, J. Ebert, T. R. Ebert, G. Eckerlin, V. Efremenko, S. Egli, R. Eichler, F. Eisele, E. Eisenhandler, R. J. Ellison, 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, A. Gellrich, 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. Grädze, R. Grässler, T. Greenshaw, R. Griffiths, G. Grindhammer, A. Gruber, C. Gruber, J. Haack, D. Haidt, L. Hajduk, M. Hampel, W. J. Haynes, G. Heinzelmann, R. C.W. Henderson, H. Hensche, I. Herynek, M. F. Hess, 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, H. Hufnagel, M. Ibbotson, H. Itterbeck, A. Jacholkowska, C. Jacobsson, M. Jaffre, J. Janoth, T. Jansen, L. Jönsson, K. Johannsen, D. P. Johnson, L. 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. Keuker, C. Kiesling, M. Klein, C. Kleinwort, G. Knies, T. Köhler, J. H. Köhne, H. Kolanoski, F. Kole, S. D. Kolya, V. Korbel, M. Korn, P. Kostka, S. K. Kotelnikov, T. Krämerkämper, M. W. Krasny, H. Krehbie, D. Krücker, U. Krüger, U. Krüner-Marquis, 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, C. Leverenz, S. Levonian, Ch Ley, G. Lindström, M. Lindstroem, J. Link, F. Linsel, J. Lipinski, B. List, G. Lobo, H. Lohmander, J. W. Lomas, G. C. Lopez, V. Lubimov, D. Lüke, N. Magnussen, E. Malinovski, S. Mani, R. Maraček, P. Marage, J. Marks, R. Marsha, J. Martens, G. Martin, R. Martin, H. U. Martyn, J. Martyniak, T. Mavroidis, S. J. Maxfield, S. J. McMahon, A. Mehta, K. Meier, T. Merz, 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, P. Murín, V. Nagovizin, R. Nahnhauer, B. Naroska, Th Naumann, P. R. Newman, D. Newton, D. Neyret, H. K. Nguyen, T. C. Nicholls, F. Niebergall, C. Niebuhr, C. Niedzballa, H. Niggli, R. Nisius, G. Nowak, G. W. Noyes, M. Nyberg-Werther, M. Oakden, H. Oberlack, U. Obrock, 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. Pitz, G. Pope, S. Prell, R. Prosi, K. Rabbertz, G. Rädel, F. Raupach, 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, N. Sahlmann, 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, R. Starosta, M. Steenbock, P. Steffen, R. Steinberg, H. Steiner, 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, J. Turnau, J. Tutas, P. Uelkes, A. Usik, S. Valkár, A. Valkárová, C. Vallée, D. Vandenplas, P. van Esch, P. van Mechelen, 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, E. Wünsch, J. Žáček, D. Zarbock, Z. Zhang, A. Zhokin, M. Zimmer, F. Zomer, J. Zsembery, K. Zuber, M. zurNedden
  • Universität Hamburg
  • P.N. Lebedev Physical Institute of the Russian Academy of Sciences
  • c/o DESY
  • ETH Zurich
  • 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
  • University of Antwerp
  • Physik-Institut der Universität Zürich
  • RWTH Aachen University
  • Institut Pierre Simon Laplace, CNRS and CEA
  • University of Manchester
  • University of Dortmund
  • University of Heidelberg
  • Yerevan Physics Institute
  • Lancaster University
  • Max-Planck-Institut für Physik
  • CCLRC Rutherford Appleton Laboratory
  • University of Liverpool
  • Aix-Marseille Université
  • Institute of Physics of the Czech Academy of Sciences
  • Christian-Albrechts-University Kiel
  • Bergische Universität Gesamthochschule Wuppertal
  • University of Rome
  • University of California, Davis
  • University of Birmingham
  • Queen Mary University of London
  • Charles University
  • Paul Scherrer Institut
  • Institute for Nuclear Physics
  • Lund University
  • Humboldt-Universität zu Berlin
  • University of Glasgow
  • Ernest Orlando Lawrence Berkeley National Laboratory

Résultats de recherche: Contribution à un journalArticleRevue par des pairs

Résumé

A search for squarks of R-parity violating supersymmetry is performed in ep collisions at HERA using H1 1994 e+ data. Direct single production of squarks of each generation by e+-quark fusion via a Yukawa coupling λ′ is considered. All possible R-parity violating decays and gauge decays of the squarks are taken into account. No significant deviation from the Standard Model predictions is found in the various multi-lepton and multi-jet final states studied and exclusion limits are derived. At 95% confidence level, the existence of first generation squarks is excluded for masses up to 240 GeV for coupling values. The limits obtained are shown to be only weakly dependent on the free parameters of the Minimal Supersymmetric Standard Model. Stop squarks are excluded for masses up to 138 GeV for coupling, where θt is the mass mixing angle. Light stop squarks are furthermore searched for through pair production in γ-gluon fusion processes. No signal is observed and exclusion limits are derived. Masses in the range 9 to 24.4 GeV are excluded at 95% confidence level for λ′ × cos θt > 10-4.

langue originaleAnglais
Pages (de - à)211-226
Nombre de pages16
journalEuropean Physical Journal C
Volume71
Numéro de publication1
étatPublié - 1 déc. 2011

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