Searches at HERA for squarks in R-parity violating supersymmetry

Authors
Adloff, C Andreev, V Andrieu, B Anthonis, T Arkadov, V Astvatsatourov, A Ayyaz, I Babaev, A Bahr, J Baranov, P Barrelet, E Bartel, W Bassler, U Bate, P Beglarian, A Behnke, O Beier, C Belousov, A Benisch, T Berger, C Bernardi, G Berndt, T Bizot, JC Boudry, V Braunschweig, W Brisson, V Broker, HB Brown, DP Bruckner, W Bruel, P Bruncko, D Burger, J Busser, FW Bunyatyan, A Burkhardt, H Burrage, A Buschhorn, G Campbell, AJ Cao, J Carli, T Caron, S Clarke, D Clerbaux, B Collard, C Contreras, JG Coppens, YR Coughlan, JA Cousinou, MC Cox, BE Cozzika, G Cvach, J Dainton, JB Dau, WD Daum, K Davidsson, M Delcourt, B Delerue, N Demirchyan, R De Roeck, A De Wolf, EA Diaconu, C Dingfelder, J Dixon, P Dodonov, V Dowell, JD Droutskoi, A Dubak, A Duprel, C Eckerlin, G Eckstein, D Efremenko, V Egli, S Eichler, R Eisele, F Eisenhandler, E Ellerbrock, M Elsen, E Erdmann, M Erdmann, W Faulkner, PJW Favart, L Fedotov, A Felst, R Ferencei, J Ferron, S Fleischer, M Fleming, YH Flugge, G Fomenko, A Foresti, I Formanek, J Foster, JM Franke, G Gabathuler, E Gabathuler, K Garvey, J Gassner, J Gayler, J Gerhards, R Gerlich, C Ghazaryan, S Goerlich, L Gogitidze, N Goldberg, M Goodwin, C Grab, C Grassler, H Greenshaw, T Grindhammer, G Hadig, T Haidt, D Hajduk, L Haynes, WJ Heinemann, B Heinzelmann, G Henderson, RCW Hengstmann, S Henschel, H Heremans, R Herrera, G Herynek, I Hildebrandt, M Hilgers, M Hiller, KH Hladky, J Hoting, P Hoffmann, D Horisberger, R Hurling, S Ibbotson, M Issever, C Jacquet, M Jaffre, M Janauschek, L Jansen, DM Janssen, X Jemanov, V Jonsson, L Johnson, DP Jones, MAS Jung, H Kastli, HK Kant, D Kapichine, M Karlsson, M Karschnick, O Keil, F Keller, N Kennedy, J Kenyon, IR Kermiche, S Kiesling, C Kjellberg, P Klein, M Kleinwort, C Knies, G Koblitz, B Kolya, SD Korbel, V Kostka, P Kotelnikov, SK Koutouev, R Koutov, A Krehbiel, H Kroseberg, J Kruger, K Kupper, A Kuhr, T Kurca, T Lahmann, R Lamb, D Landon, MPJ Lange, W Lastovicka, T Laycock, P Lebailly, E Lebedev, A Leissner, B Lemrani, R Lendermann, V Levonian, S Lindstroem, M List, B Lobodzinska, E Lobodzinski, B Loginov, A Loktionova, N Lubimov, V Luders, S Luke, D Lytkin, L Magnussen, N Mahlke-Kruger, H Malden, N Malinovski, E Malinovski, L Maracek, R Marage, P Marks, J Marshall, R Martyn, HU Martyniak, J Maxfield, SJ Meer, D Mehta, A Meier, K Merkel, P Meyer, AB Meyer, H Meyer, J Meyer, PO Mikocki, S Milstead, D Mkrtchyan, T Mohr, R Mohrdieck, S Mondragon, MN Moreau, F Morozov, A Morris, JV Muller, K Murin, P Nagovizin, V Naroska, B Naumann, J Naumann, T Nellen, G Newman, PR Nicholls, TC Niebergall, F Niebuhr, C Nix, O Nowak, G Nunnemann, T Olsson, JE Ozerov, D Panassik, V Pascaud, C Patel, GD Peez, M Perez, E Phillips, JP Pitzl, D Poschl, R Potachnikova, I Povh, B Rabbertz, K Radel, G Rauschenberger, J Reimer, P Reisert, B Reyna, D Riess, S Risler, C Rizvi, E Robmann, P Roosen, R Rostovtsev, A Royon, C Rusakov, S Rybicki, K Sankey, DPC Scheins, J Schilling, FP Schleper, P Schmidt, D Schmidt, D Schmitt, S Schneider, M Schoeffel, L Schoning, A Schorner, T Schroder, V Schultz-Coulon, HC Schwanenberger, C Sedlak, K Sefkow, F Shekelyan, V Sheviakov, I Shtarkov, LN Sirois, Y Sloan, T Smirnov, P Solochenko, V Soloviev, Y Spaskov, V Specka, A Spitzer, H Stamen, R Steinhart, J Stella, B Stellberger, A Stiewe, J Straumann, U Struczinski, W Swart, M Tasevsky, M Tchernyshov, V Tchetchelnitski, S Thompson, G Thompson, PD Tobien, N Traynor, D Truol, P Tsipolitis, G Tsurin, I Turnau, J Turney, JE Tzamariudaki, E Udluft, S Usik, A Valkar, S Valkarova, A Vallee, C Van Mechelen, P Vassiliev, S Vazdik, Y Vichnevski, A Wacker, K Wallny, R Walter, T Waugh, B Weber, G Weber, M Wegener, D Werner, M Werner, N White, G Wiesand, S Wilksen, T Winde, M Winter, GG Wissing, C Wobisch, M Wollatz, H Wunsch, E Wyatt, AC Zacek, J Zalesak, J Zhang, Z Zhokin, A Zomer, F Zsembery, J zur Nedden, M
Citation
C. Adloff et al., Searches at HERA for squarks in R-parity violating supersymmetry, EUR PHY J C, 20(4), 2001, pp. 639-657
Citations number
59
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
EUROPEAN PHYSICAL JOURNAL C
ISSN journal
1434-6044 → ACNP
Volume
20
Issue
4
Year of publication
2001
Pages
639 - 657
Database
ISI
SICI code
1434-6044(200105)20:4<639:SAHFSI>2.0.ZU;2-6
Abstract
A search for squarks in R-parity violating supersymmetry is performed in e( +)p collisions at HERA at a centre of mass energy of 300 GeV, using HI data corresponding to an integrated luminosity of 37 pb(-1). The direct product ion of single squarks of any generation in positron-quark fusion via a Yuka wa coupling lambda' is considered, taking into account R-parity violating a nd conserving decays of the squarks. No significant deviation from the Stan dard Model expectation is found. The results are interpreted in terms of co nstraints within the minimal Supersymmetric Standard Model (MSSM), the cons trained MSSM and the minimal Supergravity model, and their sensitivity to t he model parameters is studied in detail. For a Yukawa coupling of electrom agnetic strength, squark masses below 260 GeV are excluded at 95% confidenc e level in a large part of the parameter space. For a 100 times smaller cou pling strength masses up to 182 GeV are excluded.