Title: | Tests of the standard model and constraints on new physics from measurements of fermion-pair production at 130-172GeV at LEP |
Authors: | Ackerstaff, K Alexander, G Allison, J Altekamp, N Anderson, KJ Anderson, S Arcelli, S Asai, S Axen, D Azuelos, G Ball, AH Grandi, C Gross, E Grunhaus, J Gruwe, M Hajdu, C Hanson, GG Hansroul, M Hapke, M Hargrove, CK Hart, PA Barberio, E Hartmann, C Hauschild, M Hawkes, CM Hawkings, R Hemingway, RJ Herndon, M Herten, G Heuer, RD Hildreth, MD Hill, JC Barlow, RJ Hillier, SJ Hobson, PR Homer, RJ Honma, AK Horvath, D Hossain, KR Howard, R Huntemeyer, P Hutchcroft, DE Igo-Kemenes, P Bartoldus, R Imrie, DC Ingram, MR Ishii, K Jawahery, A Jeffreys, PW Jeremie, H Jimack, M Joly, A Jones, CR Jones, G Batley, JR Jones, M Jost, U Jovanovic, P Junk, TR Karlen, D Kartvelishvili, V Kawagoe, K Kawamoto, T Kayal, PI Keeler, RK Baumann, S Kellogg, RG Kennedy, BW Kirk, J Klier, A Kluth, S Kobayashi, T Kobel, M Koetke, DS Kokott, TP Kolrep, M Bechtluft, J Komamiya, S Kress, T Krieger, P von Krogh, J Kyberd, P Lafferty, GD Lahmann, R Lai, WP Lanske, D Lauber, J Beeston, C Lautenschlager, SR Layter, JG Lazic, D Lee, AM Lefebvre, E Lellouch, D Letts, J Levinson, L Lloyd, SL Loebinger, FK Behnke, T Long, GD Losty, MJ Ludwig, J Macchiolo, A Macpherson, A Mannelli, M Marcellini, S Markus, C Martin, AJ Martin, JP Bell, AN Martinez, G Mashimo, T Mattig, P McDonald, WJ McKenna, J Mckigney, EA McMahon, TJ McPherson, RA Meijers, F Menke, S Bella, G Merritt, FS Mes, H Meyer, J Michelini, A Mikenberg, G Miller, DJ Mincer, A Mir, R Mohr, W Montanari, A Bentvelsen, S Mori, T Morii, M Muller, U Mihara, S Nagai, K Nakamura, I Neal, HA Nellen, B Nisius, R O'Neale, SW Bethke, S Oakham, FG Odorici, F Ogren, HO Oh, A Oldershaw, NJ Oreglia, MJ Orito, S Palinkas, J Pasztor, G Pater, JR Biebel, O Patrick, GN Patt, J Pearce, MJ Perez-Ochoa, R Petzold, S Pfeifenschneider, P Pilcher, JE Pinfold, J Plane, DE Poffenberger, P Biguzzi, A Poli, B Posthaus, A Rees, DL Rigby, D Robertson, S Robins, SA Rodning, N Roney, JM Rooke, A Ros, E Bird, SD Rossi, AM Routenburg, P Rozen, Y Runge, K Runolfsson, O Ruppel, U Rust, DR Rylko, R Sachs, K Saeki, T Blobel, V Sarkisyan, EKG Sbarra, C Schaile, AD Schaile, O Scharf, F Scharff-Hansen, P Schenk, P Schieck, J Schleper, P Schmitt, B Bloodworth, IJ Schmitt, S Schoning, A Schroder, M Schultz-Coulon, HC Schumacher, M Schwick, C Scott, WG Shears, TG Shen, BC Shepherd-Themistocleous, CH Bloomer, JE Sherwood, P Siroli, GP Sittler, A Skillman, A Skuja, A Smith, AM Snow, GA Sobie, R Soldner-Rembold, S Springer, RW Bobinski, M Sproston, M Stephens, K Steuerer, J Stockhausen, B Stoll, K Strom, D Szymanski, P Tafirout, R Talbot, SD Tanaka, S Bock, P Taras, P Tarem, S Teuscher, R Thiergen, M Thomson, MA von Torne, E Towers, S Trigger, I Trocsanyi, Z Tsur, E Bonacorsi, D Turcot, AS Turner-Watson, MF Utzat, P Van Kooten, R Verzocchi, M Vikas, P Vokurka, EH Voss, H Wackerle, F Wagner, A Boutemeur, M Ward, CP Ward, DR Watkins, PM Watson, AT Watson, NK Wells, PS Wermes, N White, JS Wilkens, B Wilson, GW Bouwens, BT Wilson, JA Wolf, G Wyatt, TR Yamashita, S Yekutieli, G Zacek, V Zer-Zion, D OPAL Collaboration Braibant, S Brigliadori, L Brown, RM Burckhart, HJ Burgard, C Burgin, R Capiluppi, P Carnegie, RK Carter, AA Carter, JR Chang, CY Charlton, DG Chrisman, D Clarke, PEL Cohen, I Conboy, JE Cooke, OC Cuffiani, M Dado, S Dallapiccola, C Dallavalle, GM Davis, R De Jong, S del Pozo, LA Desch, K Dienes, B Dixit, MS Silva, EDE Doucet, M Duchovni, E Duckeck, G Duerdoth, IP Eatough, D Edwards, JEG Estabrooks, PG Evans, HG Evans, M Fabbri, F Fanti, M Faust, AA Fiedler, F Fierro, M Fischer, HM Fleck, I Folman, R Fong, DG Foucher, M Furtjes, A Futyan, DI Gagnon, P Gary, JW Gascon, J Gascon-Shotkin, SM Geddes, NI Geich-Gimbel, C Geralis, T Giacomelli, G Giacomelli, P Giacomelli, R Gibson, V Gibson, WR Gingrich, DM Glenzinski, D Goldberg, J Goodrick, MJ Gorn, W |
Keywords: | P(P)OVER-BAR COLLISIONS;BHABHA SCATTERING;ROOT-S=1.8 TEV;HADRONIC CROSS-SECTION;OPAL EXPERIMENT;E+E ANNIHILATION;MONTE-CARLO PROGRAM;INCLUSIVE MUON PRODUCTION;OF-MASS ENERGIES;130 GEV-LESS-THAN-ROOT-S-LESS-THAN-140 GEV |
Issue Date: | Apr-1998 |
Citation: | Ackerstaff et al., K. Tests of the standard model and constraints on new physics from measurements of fermion-pair production at 130–172 GeV at LEP. Eur. Phys. J. C 2, 441–472 (1998). |
Abstract: | Production of events with hadronic and leptonic final states has been measured in e(+)e(-) collisions at centre-of-mass energies of 130-172 GeV, using the OPAL detector at LEP. Cross-sections and leptonic forward-backward asymmetries are presented, both including and excluding the dominant production of radiative Z gamma events, and compared to Standard Model expectations. The ratio R-b of the cross-section for <b(b)over bar> production to the hadronic cross-section has been measured. In a model-independent fit to the Z lineshape, the data have been used to obtain an improved precision on the measurement of gamma-Z interference. The energy dependence of alpha(em) has been investigated. The measurements have also been used to obtain limits on extensions of the Standard Model described by effective four-fermion contact interactions, to search for t-channel contributions from new massive particles and to place limits on gaugino pair production with subsequent decay of the gaugino into a light gluino and a quark pair. |
URI: | http://bura.brunel.ac.uk/handle/2438/20562 |
ISSN: | 1434-6044 |
Appears in Collections: | Dept of Electronic and Electrical Engineering Research Papers
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