QCD analyses and determinations of alpha(s) in e(+)e(-) annihilation at energies between 35 and 189 GeV

Authors
Pfeifenschneider, P Biebel, O MovillaFernandez, PA Abbiendi, G Ackerstaff, K Akesson, PF Alexander, G Allison, J Anderson, KJ Arcelli, S Asai, S Ashby, SF Axen, D Azuelos, G Bailey, I Ball, AH Barberio, E Barlow, RJ Batley, JR Baumann, S Behnke, T Bell, KW Bella, G Bellerive, A Bentvelsen, S Bethke, S Biebel, O Biguzzi, A Bloodworth, IJ Bock, P Bohme, J Boeriu, O Bonacorsi, D Boutemeur, M Braibant, S Bright-Thomas, P Brigliadori, L Brown, RM Burckhart, HJ Cammin, J Capiluppi, P Carnegie, RK Carter, AA Carter, JR Chang, CY Charlton, DG Chrisman, D Ciocca, C Clarke, PEL Clay, E Cohen, I Cooke, OC Couchman, J Couyoumtzelis, C Coxe, RL Cuffiani, M Dado, S Dallavalle, GM Dallison, S Davis, R de Roeck, A Dervan, P Desch, K Dienes, B Dixit, MS Donkers, M Dubbert, J Duchovni, E Duckeck, G Duerdoth, IP Estabrooks, PG Etzion, E Fabbri, F Fanfani, A Fanti, M Faust, AA Feld, L Ferrari, P Fiedler, F Fierro, M Fleck, I Frey, A Furtjes, A Futyan, DI Gagnon, P Gary, JW Gaycken, G Geich-Gimbel, C Giacomelli, G Giacomelli, P Gingrich, DM Glenzinski, D Goldberg, J Gorn, M Grandi, C Graham, K Gross, E Grunhaus, J Gruwe, M Gunther, PO Hajdu, C Hanson, GG Hansroul, M Hapke, M Harder, K Harel, A Hargrove, CK Harin-Dirac, M Hauke, A Hauschild, M Hawkes, CM Hawkings, R Hemingway, RJ Hensel, C Herten, G Heuer, RD Hildreth, MD Hill, JC Hobson, PR Hocker, A Hoffman, K Homer, RJ Honma, AK Horvath, D Hossain, KR Howard, R Huntemeyer, P Igo-Kemenes, P Imrie, DC Ishii, K Jacob, FR Jawahery, A Jeremie, H Jimack, M Jones, CR Jovanovic, P Junk, TR Kanaya, N Kanzaki, J Karapetian, G Karlen, D Kartvelishvili, V Kawagoe, K Kawamoto, T Kayal, PI Keeler, RK Kellogg, RG Kennedy, BW Kim, DH Klier, A Kobayashi, T Kobel, M Kokott, TP Kolrep, M Komamiya, S Kowalewski, RV Kress, T Krieger, P von Krogh, J Kuhl, T Kupper, M Kyberd, P Lafferty, GD Landsman, H Lanske, D Lawson, I Layter, JG Leins, A Lellouch, D Letts, J Levinson, L Liebisch, R Lillich, J List, B Littlewood, C Lloyd, AW Lloyd, SL Loebinger, FK Long, GD Losty, MJ Lu, J Ludwig, J Macchiolo, A Macpherson, A Mader, W Mannelli, M Marcellini, S Marchant, TE Martin, AJ Martin, JP Martinez, G Mashimo, T Mattig, P McDonald, WJ McKenna, J McMahon, TJ McPherson, RA Meijers, F Mendez-Lorenzo, P Merritt, FS Mes, H Meyer, I Michelini, A Mihara, S Mikenberg, G Miller, DJ Mohr, W Montanari, A Mori, T Nagai, K Nakamura, I Neal, HA Nisius, R O'Neale, SW Oakham, FG Odorici, F Ogren, HO Okpara, A Oreglia, MJ Orito, S Pasztor, G Pater, JR Patrick, GN Patt, J Perez-Ochoa, R Pfeifenschneider, P Pilcher, JE Pinfold, J Plane, DE Poli, B Polok, J Przybycien, M Quadt, A Rembser, C Rick, H Robins, SA Rodning, N Roney, JM Rosati, S Roscoe, K Rossi, AM Rozen, Y Runge, K Runolfsson, O Rust, DR Sachs, K Saeki, T Sahr, O Sang, WM Sarkisyan, EKG Sbarra, C Schaile, AD Schaile, O Scharff-Hansen, P Schieck, J Schmitt, S Schoning, A Schroder, M Schumacher, M Schwick, C Scott, WG Seuster, R Shears, TG Shen, BC Shepherd-Themistocleous, CH Sherwood, P Siroli, GP Skuja, A Smith, AM Snow, GA Sobie, R Soldner-Rembold, S Spagnolo, S Sproston, M Stahl, A Stephens, K Stoll, K Strom, D Strohmer, R Surrow, B Talbot, SD Tarem, S Taylor, RJ Teuscher, R Thiergen, M Thomas, J Thomson, MA Torrence, E Towers, S Trefzger, T Trigger, I Trocsanyi, Z Tsur, E Turner-Watson, MF Ueda, I Van Kooten, R Vannerem, P Verzocchi, M Voss, H Waller, D Ward, CP Ward, DR Watkins, PM Watson, AT Watson, NK Wells, PS Wengler, T Wermes, N Wetterling, D White, JS Willson, GW Wilson, JA Wyatt, TR Yamashita, S Zacek, V Zer-Zion, D
Citation
P. Pfeifenschneider et al., QCD analyses and determinations of alpha(s) in e(+)e(-) annihilation at energies between 35 and 189 GeV, EUR PHY J C, 17(1), 2000, pp. 19-51
Citations number
59
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
EUROPEAN PHYSICAL JOURNAL C
ISSN journal
1434-6044 → ACNP
Volume
17
Issue
1
Year of publication
2000
Pages
19 - 51
Database
ISI
SICI code
1434-6044(200010)17:1<19:QAADOA>2.0.ZU;2-1
Abstract
We employ data taken by the JADE and OPAL experiments for an integrated QCD study in hadronic e(+)e(-) annihilations at c.m.s. energies ranging from 3 5 GeV through 189 GeV. The study is based on jet-multiplicity related obser vables. The observables are obtained to high jet resolution scales with the JADE, Durham, Cambridge and cone jet finders, and compared with the predic tions of various QCD and Monte Carlo models. The strong coupling strength, alpha (s), is determined at each energy by fits of O(alpha (2)(s)) calculat ions, as well as matched O(alpha (2)(s)) and NLLA predictions, to the data. Matching schemes are compared, and the dependence of the results on the ch oice of the renormalization scale is investigated. The combination of the r esults using matched predictions gives alpha (s)(M-Z0) = 0.1187(-0.0019)(+0.0034). The strong coupling is also obtained, at lower precision, from O(alpha (2)( s)) fits of the c.m.s. energy evolution of some of the observables. A quali tative comparison is made between the data and a recent MLLA prediction for mean jet multiplicities.