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Persistent URL http://purl.org/net/epubs/work/24454
Record Status Checked
Record Id 24454
Title A search for the top and b′ quarks in hadronic Z0 decays
Contributors
MZ Akrawy, G Alexander, J Allison, PP Allport, KJ Anderson, JC Armitage, GTJ Arnison, P Ashton, G Azuelos, J T M Baines, AH Ball, J Banks, GJ Barker, Roger J Barlow, JR Batley, G Bavaria, C Beard, F Beck, K W Bell, G Bella, S Bethke, O Biebel, IJ Bloodworth, P Bock, H Boerner, H Breuker, R M Brown, R Brun, A Buis, HJ Burckhart, P Capiluppi, RK Carnegie, AA Carter, JR Carter, CY Chang, DG Charlton, JTM Chrin, I Cohen, J Conboy, M Couch, M Coupland, M Cuffiani, S Dado, GM Dallavalle, OW Davies, MM Deninno, A Dieckmann, M Dittmar, MS Dixit, D Duchesneau, E Duchovni, IP Duerdoth, D Dumas, H El Mamouni, PA Elcombe, PG Estabrooks, F Fabbri, P Farthouat, HM Fischer, DG Fong, MT French, C Fukunaga, B Gandois, O Ganel, JW Gary, N I Geddes, C N P Gee, C Geich-Gimbel, SW Gensler, FX Gentit, G Giacomelli, W R Gibson, JD Gillies, J Goldberg, MJ Goodrick, W Gorn, D Granite, E Gross, P Grosse-Wiesmann, J Grunhaus, H Hagedorn, J Hagemann, M Hansroul, CK Hargrove, J Hart, PM Hattersley, D Hatzifotiadou, M Hauschild, CM Hawkes, E Heflin, J Heintze, RJ Hemingway, RD Heuer, JC Hill, S J Hillier, PS Hinde, C Ho, JD Hobbs, P R Hobson, D Hochman, B Holl, R J Homer, SR Hou, CP Howarth, R E Hughes-Jones, P Igo-Kemenes, M Imori, DC Imrie, A Jawahery, PW Jeffreys, H Jeremie, M Jimack, E Jin, M Jobes, RWL Jones, P Jovanovic, D Karlen, K Kawagoe, T Kawamoto, RG Kellogg, B W Kennedy, C Kleinwort, DE Klem, G Knop, T Kobayashi, L Koepke, TP Kokott, M Koshiba, R Kowalewski, H Kreutzmann, J von Krogh, J Kroll, P Kyberd, GD Lafferty, F Lamarche, WJ Larson, MMB Lasota, JG Layter, P Le Du, P Leblanc, D Lellouch, P Lennert, L Lessard, L Levinson, SL Lloyd, FK Loebinger, JM Lorah, B Lorazo, MJ Losty, J Ludwig, N Lupu, J Ma, AA Macbeth, M Mannelli, S Marcellini, G Maringer, JP Martin, T Mashimo, P Mattig, U Mauer, TJ McMahon, AC McPherson, F Meijers, D Menszner, FS Merritt, H Mes, A Michelini, RP Middleton, G Mikenberg, DJ Miller, C Milstene, M Minowa, W Mohr, A Montanari, T Mori, MW Moss, A Muller, PG Murphy, W J Murray, B Nellen, HH Nguyen, M Nozaki, AJP O'Dowd, SW O'Neale, B O'Neill, FG Oakham, F Odorici, M Ogg, H Oh, MJ Oreglia, S Orito, G N Patrick, SJ Pawley, A Perez, JE Pilcher, JL Pinfold, DE Plane, B Poli, A Possoz, A Pouladdej, T W Pritchard, G Quast, J Raab, MW Redmond, DL Rees, M Regimbald, K Riles, CM Roach, F Rohner, A Rollnik, JM Roney, AM Rossi, P Routenburg, K Runge, O Runolfsson, S Sanghera, R A Sansum, M Sasaki, B J Saunders, AD Schaile, O Schaile, W Schappert, P Scharff-Hansen, H von der Schmitt, S Schreiber, J Schwarz, A Shapira, BC Shen, P Sherwood, A Simon, GP Siroli, A Skuja, A Smith, TJ Smith, GA Snow, EJ Spreadbury, RW Springer, M Sproston, K Stephens, J Steuerer, HE Stier, R Strohmer, D Strom, H Takeda, T Takeshita, T Tsukamoto, MF Turner, G Tysarczyk, D Van den plas, GJ VanDalen, CJ Virtue, A Wagner, C Wahl, H Wang, CP Ward, DR Ward, J Waterhouse, PM Watkins, AT Watson, N K Watson, M Weber, S Weisz, N Wermes, M Weymann, GW Wilson, JA Wilson, I Wingerter, VH Winterer, NC Wood, S Wotton, B Wunsch, TR Wyatt, R Yaari, H Yamashita, Y Yang, G Yekutieli, W Zeuner, GT Zorn, S Zylberajch
Abstract We report on a search for new quarks in hadronic Z° decays. From the event shape analysis of a data sample containing 2185 multihadronic annihilation events, we observe no evidence for the top or b' quarks. We derive limits for the top and b' quark masses under the assumption of various possible standard model and non-standard model decay schemes. Our search is sensitive to quark masses larger than 23 GeV/c2; it yields the following lower limits at a 95% confidence level: 44.5 GeV/c2 for the top quark mass and 45.2 GeV/c2 for the b′ quark mass.
Organisation PPD , OPAL , SERC
Keywords
Funding Information
Related Research Object(s):
Language English (EN)
Type Details URI(s) Local file(s) Year
Journal Article Phys Lett B 236, no. 3 (1990): 364-374. doi:10.1016/0370-2693(90)90999-M 1990
Report CERN-EP-89-154. 1989. 1989
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