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Determination of αs using the next-to-leading-log approximation of QCD
Authors
P. Abreu Adam, W. Adye, T. Agasi, E. Aleksan, R. Alekseev, G.D. Algeri, A. Allen, P. Almehed, A. Alvsvaag, S.J. Amaldi, U. Andreazza, A. Antilogus, P. Apel, W.-D. Apsimon, R.J. Arnoud, Y. Åsman, B. Augustin, J.-E. Augustinus, A. Baillon, P. Bambade, P. Barao, F. Barate, R. Barbiellini, G. Bardin, D.Y. Barker, G.J. Baroncelli, A. Barring, O. Barrio, J.A. Bartl, W. Bates, M.J. Battaglia, M. Baubillier, M. Becks, K.-H. Beeston, C.J. Begalli, M. Beilliere, P. Belokopyptov, Yu. Beltran, P. Benedic, D. Benvenuti, A.C. Berggren, M. Bertrand, D. Bianchi, F. Bilenky, M.S. Billoir, P. Bjarne, J. Bloch, D. Blyth, S. Bocci, V. Bogolubov, P.N. Bolognese, T. Bonesini, M. Bonivento, W. Booth, P.S.L. Borisov, G. Borner, H. Bosio, C. Bostjancic, B. Bosworth, S. Botner, O. Bouquet, B. Bourdarios, C. Bowcock, T.J.V. Bozzo, M. Braibant, S. Branchini, P. Brand, K.D. Brenner, R.A. Briand, H. Bricman, C. Brown, R.C.A. Brummer, N. Brunet, J.-M. Bugge, L. Buran, T. Burmeister, H. Buytaert, J.A.M.A. Caccia, M. Calvi, M. Camacho Rozas, A.J. Campion, R. Camporesi, T. Canale, V. Cao, F. Carena, F. Carroll, L. Caso, C. Castillo Gimenez, M.V. Cattai, A. Cavallo, F.R. Cerrito, L. Chabaud, V. Chan, A. Chapkin, M. Charpentier, Ph. Chaussard, L. Chauveau, J. Checchia, P. Chelkov, G.A. Chevalier, L. Chliapnikov, P. Chorowicz, V. Chrin, J.T.M. Clara, M.P. Collins, P. Contreras, J.L. Contri, R. Cortina, E. Cosme, G. Couchot, F. Crawley, H.B. Crennell, D. Crosetti, G. Crozon, M. Cuevas Maestro, J. Czellar, S. Dahl-Jensen, E. Dalmagne, B. Dam, M. Damgaard, G. Darbo, G. Daubie, E. Daum, A. Dauncey, P.D. Davenport, M. David, P. Davies, J. Da Silva, W. Defoix, C. Delpierre, P. Demaria, N. De Angelis, A. De Boeck, H. De Boer, W. De Clerq, C. De Fez Laso, M.D.M. De Groot, N. De La Vaissiere, C. De Lotto, B. De Min, A. Dijkstra, H. Di Ciaccio, L. Djama, F. Dolbeau, J. Donszelmann, M. Doroba, K. Dracos, M. Drees, J. Dris, M. Dufour, Y. Dupont, F. Eek, L.-O. Eerola, P.A.-M. Ehret, R. Ekelof, T. Ekspong, G. Elliot Peisert, A. Engel, J.-P. Ershaidat, N. Fassouliotis, D. Feindt, M. Fernandez Alonso, M. Ferrer, A. Filippas, T.A. Firestone, A. Foeth, H. Fokitis, E. Fontanelli, F. Forbes, K.A.J. Fousset, J.-L. Francon, S. Franek, B. Frenkiel, P. Fries, D.C. Frodesen, A.G. Fruhwirth, R. Fulda-Quenzer, F. Furnival, K. Furstenau, H. Fuster, J. Gamba, D. Garcia, C. Garcia, J. Gaspar, C. Gasparini, U. Gavillet, Ph. Gazis, E.N. Gerber, J.-P. Giacomelli, P. Gokieli, R. Golob, B. Golovatyuk, V.M. Gomez Y Cadenas, J.J. Goobar, A. Gopal, G. Gorski, M. Gracco, V. Grant, A. Grard, F. Graziani, E. Grosdidier, G. Gross, E. Grosse-Wiesmann, P. Grossetete, B. Guy, J. Haedinger, U. Hahn, F. Hahn, M. Haider, S. Hajduk, Z. Hakansson, A. Hallgren, A. Hamacher, K. Hamel De Monchenault, G. Hao, W. Harris, F.J. Hedberg, V. Henkes, T. Hernandez, J.J. Herquet, P. Herr, H. Hessing, T.L. Hietanen, I. Higgins, C.O. Higon, E. Hilke, H.J. Hodgson, S.D. Hofmokl, T. Holmes, R. Holmgren, S.-O. Holthuizen, D. Honore, P.F. Hooper, J.E. Houlden, M. Hrubec, J. Huet, K. Hulth, P.O. Hultqvist, K. Ioannou, P. Iversen, P.-S. Jackson, J.N. Jalocha, P. Jarlskog, G. Jarry, P. Jean-Marie, B. Johansson, E.K. Johnson, D. Jonker, M. Jonsson, L. Juillot, P. Kalkanis, G. Kalmus, G. Kapusta, F. Karlsson, M. Karvelas, E. Katsanevas, S. Katsoufis, E.C. Keranen, R. Kesteman, J. Khomenko, B.A. Khovanski, N.N. King, B. Kjaer, N.J. Klein, H. Klovning, A. Kluit, P. Koch-Mehrin, A. Koehne, J.H. Koene, B. Kokkinias, P. Koratzinos, M. Korcyl, H. Korytov, A.V. Kostioukhine, V. Kourkoumelis, C. Kouznetsov, O. Kramer, P.H. Krolikowski, J. Kronkvist, I. Kruener-Marquis, U. Kucewicz, W. Kulka, K. Kurvinen, K. Lacasta, C. Lambropoulos, C. Lamsa, J.W. Lanceri, L. Lapin, V. Laugier, J.-P. Lauhakangas, R. Leder, G. Ledroit, F. Leitner, R. Lemoigne, Y. Lemonne, J. Lenzen, G. Lepeltier, V. Lesiak, T. Levy, J.M. Lieb, E. Liko, D. Lindgren, J. Lindner, R. Lipniacka, A. Lippi, I. Loerstad, B. Lokajicek, M. Loken, J.G. Lopez-Fernandez, A. Lopez Aguera, M.A. Los, M. Loukas, D. Lozano, J.J. Lutz, P. Lyons, L. Maehlum, G. Maillard, J. Maio, A. Maltezos, A. Mandl, F. Marco, J. Margoni, M. Marin, J.-C. Markou, A. Maron, T. Marti, S. Mathis, L. Matorras, F. Matteuzzi, C. Matthiae, G. Mazzucato, M. Mc Cubbin, M. Mc Kay, R. Mc Nulty, R. Meola, G. Meroni, C. Meyer, W.T. Michelotto, M. Mikulec, I. Mirabito, L. Mitaroff, W.A. Mitselmakher, G.V. Mjoernmark, U. Moa, T. Moeller, R. Moenig, K. Monge, M.R. Morettini, P. Mueller, H. Murray, W.J. Myatt, G. Navarria, F.L. Negri, P. Nicolaidou, R. Nielsen, B.S. Nijjhar, B. Nikolaenko, V. Nilsen, P.E.S. Niss, P. Nomerotski, A. Obraztsov, V. Olshevski, A.G. Orava, R. Ostankov, A. Osterberg, K. Ouraou, A. Paganoni, M. Pain, R. Palka, H. Papadopoulou, T. Pape, L. Parodi, F. Passeri, A. Pegoraro, M. Pennanen, J. Peralta, L. Perevozchikov, V. Pernegger, H. Pernicka, M. Perrotta, A. Petridou, C. Petrolini, A. Pierre, F. Pimenta, M. Pingot, O. Plaszczynski, S. Podobrin, O. Pol, M.E. Polok, G. Poropat, P. Privitera, P. Pullia, A. Radojicic, D. Ragazzi, S. Rahmani, H. Ratoff, P.N. Read, A.L. Rebecchi, P. Redaelli, N.G. Regler, M. Reid, D. Renton, P.B. Resvanis, L.K. Richard, F. Richardson, M. Ridky, J. Rinaudo, G. Roditi, I. Romero, A. Roncagliolo, I. Ronchese, P. Ronnqvist, C. Rosenberg, E.I. Rossi, S. Rosso, E. Roudeau, P. Rovelli, T. Ruckstuhl, W. Ruhlmann-Kleider, V. Ruiz, A. Saarikko, H. Sacquin, Y. Sajot, G. Salt, J. Sanchez, J. Sannino, M. Schael, S. Schneider, H. Schulze, B. Schyns, M.A.E. Sciolla, G. Scuri, F. Segar, A.M. Seitz, A. Sekulin, R. Sessa, M. Sette, G. Seufert, R. Shellard, R.C. Siccama, I. Siegrist, P. Simonetti, S. Simonetto, F. Sisakian, A.N. Skjevling, G. Smadja, G. Smirnov, N. Smith, G.R. Sosnowski, R. Souza-Santos, D. Spassoff, T.S. Spiriti, E. Squarcia, S. Staeck, H. Stanescu, C. Stapnes, S. Stavropoulos, G. Stichelbaut, F. Stocchi, A. Strauss, J. Straver, J. Strub, R. Stugu, B. Szczekowski, M. Szeptycka, M. Szymanski, P. Tabarelli, T. Tchikilev, O. Theodosiou, G.E. Tilquin, A. Timmermans, J. Timofeev, V.G. Tkatchev, L.G. Todorov, T. Toet, D.Z. Toker, O. Tome, B. Torassa, E. Tortora, L. Treille, D. Trevisian, U. Trischuk, W. Tristram, G. Troncon, C. Tsirou, A. Tsyganov, E.N. Turluer, M.-L. Tuuva, T. Tyapkin, I.A. Tyndel, M. Tzamarias, S. Ueberschaer, S. Ullaland, O. Uvarov, V. Valenti, G. Vallazza, E. Valls Ferrer, J.A. Vander Velde, C. Van Apeldoorn, G.W. Van Dam, P. Van Der Heijden, M. Van Doninck, W.K. Vaz, P. Vegni, G. Ventura, L. Venus, W. Verbeure, F. Verlato, M. Vertogradov, L.S. Vilanova, D. Vincent, P. Vitale, L. Vlasov, E. Vodopyanov, A.S. Vollmer, M. Voutilainen, M. Vrba, V. Wahlen, H. Walck, C. Waldner, F. Wayne, M. Wehr, A. Weierstall, M. Weilhammer, P. Werner, J. Wetherell, A.M. Wickens, J.H. Wilkinson, G.R. Williams, W.S.C. Winter, M. Witek, M. Wormser, G. Woschnagg, K. Yamdagni, N. Yepes, P. Zaitsev, A. Zalewska, A. Zalewski, P. Zavrtanik, D. Zevgolatakos, E. Zhang, G. Zimin, N.I. Zito, M. Zuberi, R. Zukanovich Funchal, R. Zumerle, G. Zuniga, J.
Publication date
1 January 1993
Publisher
Abstract
A new measurement of αs is obtained from the distributions in thrust, heavy jet mass, energy-energy correlation and two recently introduced jet broadening variables following a method proposed by Catani, Trentadue, Turnock and Webber. This method includes the full calculation of O(s2) terms and leading and next-to-leading logarithms resummed to all orders of αs. The analysis is based on data taken with the DELPHI detector at LEP during 1991. I its found that the inclusion of the resummed leading and next-to-leading logarithms reduces the scale dependence of αs and allows an extension of the fit range towards the infrared limit of the kinematical range. The combined value for αs obtained at the scale μ2=MZ2 is: Mathematical expression © 1993 Springer-Verlag
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