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Search for squarks in R-parity violating supersymmetry in ep collisions at HERA

  • F. D. Aaron
  • , C. Alexa
  • , V. Andreev
  • , S. Backovic
  • , A. Baghdasaryan
  • , S. Baghdasaryan
  • , E. Barrelet
  • , W. Bartel
  • , K. Begzsuren
  • , A. Belousov
  • , J. C. Bizot
  • , V. Boudry
  • , I. Bozovic-Jelisavcic
  • , J. Bracinik
  • , G. Brandt
  • , M. Brinkmann
  • , V. Brisson
  • , D. Britzger
  • , D. Bruncko
  • , A. Bunyatyan
  • G. Buschhorn, L. Bystritskaya, A. J. Campbell, K. B. Cantun Avila, F. Ceccopieri, K. Cerny, V. Cerny, V. Chekelian, A. Cholewa, J. G. Contreras, J. A. Coughlan, J. Cvach, J. B. Dainton, K. Daum, B. Delcourt, J. Delvax, E. A. De Wolf, C. Diaconu, M. Dobre, V. Dodonov, A. Dossanov, A. Dubak, G. Eckerlin, S. Egli, A. Eliseev, E. Elsen, L. Favart, A. Fedotov, R. Felst, J. Feltesse, J. Ferencei, D. J. Fischer, M. Fleischer, A. Fomenko, E. Gabathuler, J. Gayler, S. Ghazaryan, A. Glazov, L. Goerlich, N. Gogitidze, M. Gouzevitch, C. Grab, A. Grebenyuk, T. Greenshaw, B. R. Grell, G. Grindhammer, S. Habib, D. Haidt, C. Helebrant, R. C.W. Henderson, E. Hennekemper, H. Henschel, M. Herbst, G. Herrera, M. Hildebrandt, K. H. Hiller, D. Hoffmann, R. Horisberger, T. Hreus, F. Huber, M. Jacquet, X. Janssen, L. Jönsson, A. W. Jung, H. Jung, M. Kapichine, J. Katzy, I. R. Kenyon, C. Kiesling, M. Klein, C. Kleinwort, T. Kluge, A. Knutsson, R. Kogler, P. Kostka, M. Kraemer, J. Kretzschmar, K. Krüger, K. Kutak, M. P.J. Landon, W. Lange, G. Laštovička-Medin, P. Laycock, A. Lebedev, V. Lendermann, S. Levonian, K. Lipka, B. List, J. List, N. Loktionova, R. Lopez-Fernandez, V. Lubimov, A. Makankine, E. Malinovski, P. Marage, H. U. Martyn, S. J. Maxfield, A. Mehta, A. B. Meyer, H. Meyer, J. Meyer, S. Mikocki, I. Milcewicz-Mika, F. Moreau, A. Morozov, J. V. Morris, M. U. Mozer, M. Mudrinic, K. Müller, Th Naumann, P. R. Newman, C. Niebuhr, D. Nikitin, G. Nowak, K. Nowak, J. E. Olsson, S. Osman, D. Ozerov, P. Pahl, V. Palichik, I. Panagoulias, M. Pandurovic, Th Papadopoulou, C. Pascaud, G. D. Patel, E. Perez, A. Petrukhin, I. Picuric, S. Piec, H. Pirumov, D. Pitzl, R. Plačakyte, B. Pokorny, R. Polifka, B. Povh, V. Radescu, N. Raicevic, T. Ravdandorj, P. Reimer, E. Rizvi, P. Robmann, R. Roosen, A. Rostovtsev, M. Rotaru, J. E. Ruiz Tabasco, S. Rusakov, D. Šálek, D. P.C. Sankey, M. Sauter, E. Sauvan, S. Schmitt, L. Schoeffel, A. Schöning, H. C. Schultz-Coulon, F. Sefkow, L. N. Shtarkov, S. Shushkevich, T. Sloan, I. Smiljanic, Y. Soloviev, P. Sopicki, D. South, V. Spaskov, A. Specka, Z. Staykova, M. Steder, B. Stella, G. Stoicea, U. Straumann, D. Sunar, T. Sykora, G. Thompson, P. D. Thompson, T. Toll, T. H. Tran, D. Traynor, P. Truöl, I. Tsakov, B. Tseepeldorj, J. Turnau, K. Urban, A. Valkárová, C. Vallée, P. Van Mechelen, Y. Vazdik, M. von den Driesch, D. Wegener, E. Wünsch, J. Žáček, J. Zálešák, Z. Zhang, A. Zhokin, H. Zohrabyan, F. Zomer
  • Horia Hulubei National Institute of Physics and Nuclear Engineering
  • P.N. Lebedev Physical Institute of the Russian Academy of Sciences
  • University of Montenegro
  • Yerevan Physics Institute
  • Universités Paris VI and VII
  • c/o DESY
  • Institute of Physics and Technology of the Mongolian Academy of Sciences
  • Laboratoire de l'Accélérateur Linéaire
  • University of Belgrade
  • University of Birmingham
  • Institute of Experimental Physics Slovak Academy of Sciences
  • Max-Planck-Institut für Kernphysik
  • Max-Planck-Institut für Physik
  • Institute for Theoretical and Experimental Physics
  • Dept. Fis. Ap. CINVESTAV
  • Inter-University Institute for High Energies ULB-VUB
  • Charles University
  • CCLRC Rutherford Appleton Laboratory
  • Institute of Physics of the Czech Academy of Sciences
  • University of Liverpool
  • Bergische Universität Gesamthochschule Wuppertal
  • Aix Marseille Université
  • Universität Hamburg
  • Paul Scherrer Institut
  • Institut Pierre Simon Laplace, CNRS and CEA
  • Institute for Nuclear Physics
  • ETH Zurich
  • Lancaster University
  • University of Heidelberg
  • CINVESTAV-IPN
  • Lund University
  • Joint Institute for Nuclear Research, Dubna
  • Queen Mary University of London
  • RWTH Aachen University
  • Physik-Institut der Universität Zürich
  • University Roma Tre
  • Institute for Nuclear Research and Nuclear Energy Bulgarian Academy of Sciences
  • University of Dortmund

Résultats de recherche: Contribution à un journalArticleRevue par des pairs

16 Citations (Scopus)

Résumé

A search for squarks in R-parity violating supersymmetry is performed in e±p collisions at HERA using the H1 detector. The full data sample taken at a centre-of-mass energy, √s = 319 GeV is used for the analysis, corresponding to an integrated luminosity of 255 pb-1 of e+p and 183 pb-1 of e-p collision data. The resonant production of squarks via a Yukawa coupling λ′ is considered, taking into account direct and indirect R-parity violating decay modes. Final states with jets and leptons are investigated. No evidence for squark production is found and mass dependent limits on λ′ are obtained in the framework of the Minimal Supersymmetric Standard Model and in the Minimal Supergravity Model. In the considered part of the parameter space, for a Yukawa coupling of electromagnetic strength λ′=0. 3, squarks of all flavours are excluded up to masses of 275 GeV at 95% confidence level, with down-type squarks further excluded up to masses of 290 GeV.

langue originaleAnglais
Numéro d'article1572
Pages (de - à)1-16
Nombre de pages16
journalEuropean Physical Journal C
Volume71
Numéro de publication3
Les DOIs
étatPublié - 1 janv. 2011

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