학술논문

First study of the interference between initial and final state radiation at the Z resonance
Document Type
Article
Author
Abreu, P.Adam, W.Adye, T.Agasi, E.Ajinenko, I.Aleksan, R.Alekseev, G. D.Alemany, R.Allport, P. P.Almehed, S.Amaldi, U.Amato, S.Andreazza, A.Andrieux, M. L.Antilogus, P.Apel, W-D.Arnoud, Y.Åsman, B.Augustin, J-E.Augustinus, A.Baillon, P.Bambade, P.Barate, R.Barbi, M.Bardin, D. Y.Baroncelli, A.Barring, O.Barrio, J. A.Bartl, W.Bates, M. J.Battaglia, M.Baubillier, M.Baudot, J.Becks, K-H.Begalli, M.Beilliere, P.Belokopytov, Yu.Belous, K.Benvenuti, A. C.Berggren, M.Bertrand, D.Bianchi, F.Bigi, M.Bilenky, M. S.Billoir, P.Bloch, D.Blume, M.Blyth, S.Bolognese, T.Bonesini, M.Bonivento, W.Booth, P. S. L.Borisov, G.Bosio, C.Bosworth, S.Botner, O.Boudinov, E.Bouquet, B.Bourdarios, C.Bowcock, T. J. V.Bozzo, M.Branchini, P.Brand, K. D.Brenke, T.Brenner, R. A.Bricman, C.Brillault, L.Brown, R. C. A.Bruckman, P.Brunet, J-M.Bugge, L.Buran, T.Burgsmueller, T.Buschmann, P.Buys, A.Cabrera, S.Caccia, M.Calvi, M.Camacho Rozas, A. J.Camporesi, T.Canale, V.Canepa, M.Cankocak, K.Cao, F.Carena, F.Carroll, L.Caso, C.Castillo Gimenez, M. V.Cattai, A.Cavallo, F. R.Cerrito, L.Chabaud, V.Charpentier, Ph.Chaussard, L.Chauveau, J.Checchia, P.Chelkov, G. A.Chen, M.Chierici, R.Chliapnikov, P.Chochula, P.Chorowicz, V.Chudoba, J.Cindro, V.Collins, P.Contreras, J. L.Contri, R.Cortina, E.Cosme, G.Cossutti, F.Crawley, H. B.Crennell, D.Crosetti, G.Maestro, J. CuevasCzellar, S.Dahl-Jensen, E.Dahm, J.Dalmagne, B.Dam, M.Damgaard, G.Dauncey, P. D.Davenport, M.Da Silva, W.Defoix, C.Deghorain, A.Della Ricca, G.Delpierre, P.Demaria, N.De Angelis, A.De Boer, W.De Brabandere, S.De Clercq, C.De La Vaissiere, C.De Lotto, B.De Min, A.De Paula, L.De Saint-Jean, C.Dijkstra, H.Di Ciaccio, L.Djama, F.Dolbeau, J.Donszelmann, M.Doroba, K.Dracos, M.Drees, J.Drees, K. -A.Dris, M.Dufour, Y.Edsall, D.Ehret, R.Eigen, G.Ekelof, T.Ekspong, G.Elsing, M.Engel, J-P.Ershaidat, N.Erzen, B.Santo, M. EspiritoFalk, E.Fassouliotis, D.Feindt, M.Ferrer, A.Filippas, T. A.Firestone, A.Fischer, P. -A.Foeth, H.Fokitis, E.Fontanelli, F.Formenti, F.Franek, B.Frenkiel, P.Fries, D. C.Frodesen, A. G.Fulda-Quenzer, F.Fuster, J.Galloni, A.Gamba, D.Gandelman, M.Garcia, C.Garcia, J.Gaspar, C.Gasparini, U.Gavillet, Ph.Gazis, E. N.Gele, D.Gerber, J-P.Gerdyukov, L.Gibbs, M.Gokieli, R.Golob, B.Gopal, G.Gorn, L.Gorski, M.Gouz, Yu.Gracco, V.Graziani, E.Grosdidier, G.Grzelak, K.Gumenyuk, S.Gunnarsson, P.Gunther, M.Guy, J.Hahn, F.Hahn, S.Hallgren, A.Hamacher, K.Hao, W.Harris, F. J.Hedberg, V.Henriques, R.Hernandez, J. J.Herquet, P.Herr, H.Hessing, T. L.Higon, E.Hilke, H. J.Hill, T. S.Holmgren, S-O.Holt, P. J.Holthuizen, D.Hoorelbeke, S.Houlden, M.Hrubec, J.Huet, K.Hultqvist, K.Jackson, J. N.Jacobsson, R.Jalocha, P.Janik, R.Jarlskog, Ch.Jarlskog, G.Jarry, P.Jean-Marie, B.Johansson, E. K.Jonsson, L.Jonsson, P.Joram, C.Juillot, P.Kaiser, M.Kapusta, F.Karafasoulis, K.Karlsson, M.Karvelas, E.Katsanevas, S.Katsoufis, E. C.Keranen, R.Khokhlov, Yu.Khomenko, B. A.Khovanski, N. N.King, B.Kjaer, N. J.Klein, H.Klovning, A.Kluit, P.Koene, B.Kokkinias, P.Koratzinos, M.Korcyl, K.Kourkoumelis, C.Kouznetsov, O.Kramer, P. -H.Krammer, M.Kreuter, C.Kronkvist, I.Krumstein, Z.Krupinski, W.Kubinec, P.Kucewicz, W.Kurvinen, K.Lacasta, C.Laktineh, I.Lamblot, S.Lamsa, J. W.Lanceri, L.Lane, D. W.Langefeld, P.Last, I.Laugier, J-P.Lauhakangas, R.Leder, G.Ledroit, F.Lefebure, V.Legan, C. K.Leitner, R.Lemoigne, Y.Lemonne, J.Lenzen, G.Lepeltier, V.Lesiak, T.Liko, D.Lindner, R.Lipniacka, A.Lippi, I.Loerstad, B.Loken, J. G.Lopez, J. M.Loukas, D.Lutz, P.Lyons, L.MacNaughton, J.Maehlum, G.Maio, A.Malychev, V.Mandl, F.Marco, J.Marco, R.Marechal, B.Margoni, M.Marin, J-C.Mariotti, C.Markou, A.Maron, T.Martinez-Rivero, C.Martinez-Vidal, F.Marti i Garcia, S.Masik, J.Matorras, F.Matteuzzi, C.Matthiae, G.Mazzucato, M.Mc Cubbin, M.Mc Kay, R.Mc Nulty, R.Medbo, J.Merk, M.Meroni, C.Meyer, S.Meyer, W. T.Michelotto, M.Migliore, E.Mirabito, L.Mitaroff, W. A.Mjoernmark, U.Moa, T.Moeller, R.Moenig, K.Monge, M. R.Morettini, P.Mueller, H.Mundim, L. M.Murray, W. J.Muryn, B.Myatt, G.Naraghi, F.Navarria, F. L.Navas, S.Nawrocki, K.Negri, P.Neumann, W.Neumeister, N.Nicolaidou, R.Nielsen, B. S.Nieuwenhuizen, M.Nikolaenko, V.Niss, P.Nomerotski, A.Normand, A.Novak, M.Oberschulte-Beckmann, W.Obraztsov, V.Olshevski, A. G.Onofre, A.Orava, R.Osterberg, K.Ouraou, A.Paganini, P.Paganoni, M.Pages, P.Palka, H.Papadopoulou, Th. D.Papageorgiou, K.Pape, L.Parkes, C.Parodi, F.Passeri, A.Pegoraro, M.Peralta, L.Pernegger, H.Pernicka, M.Perrotta, A.Petridou, C.Petrolini, A.Petrovyck, M.Phillips, H. T.Piana, G.Pierre, F.Pimenta, M.Pindo, M.Plaszczynski, S.Podobrin, O.Pol, M. E.Polok, G.Poropat, P.Pozdniakov, V.Prest, M.Privitera, P.Pukhaeva, N.Pullia, A.Radojicic, D.Ragazzi, S.Rahmani, H.Ratoff, P. N.Read, A. L.Reale, M.Rebecchi, P.Redaelli, N. G.Regler, M.Reid, D.Renton, P. B.Resvanis, L. K.Richard, F.Richardson, J.Ridky, J.Rinaudo, G.Ripp, I.Romero, A.Roncagliolo, I.Ronchese, P.Roos, L.Rosenberg, E. I.Rosso, E.Roudeau, P.Rovelli, T.Ruckstuhl, W.Ruhlmann-Kleider, V.Ruiz, A.Rybicki, K.Rybin, A.Saarikko, H.Sacquin, Y.Sadovsky, A.Sajot, G.Salt, J.Sanchez, J.Sannino, M.Schimmelpfennig, M.Schneider, H.Schwickerath, U.Schyns, M. A. E.Sciolla, G.Scuri, F.Seager, P.Sedykh, Y.Segar, A. M.Seitz, A.Sekulin, R.Shellard, R. C.Siccama, I.Siegrist, P.Simonetti, S.Simonetto, F.Sisakian, A. N.Sitar, B.Skaali, T. B.Smadja, G.Smirnov, N.Smirnova, O.Smith, G. R.Solovianov, O.Sosnowski, R.Souza-Santos, D.Spassov, T.Spiriti, E.Sponholz, P.Squarcia, S.Stanescu, C.Stapnes, S.Stavitski, I.Stichelbaut, F.Stocchi, A.Strauss, J.Strub, R.Stugu, B.Szczekowski, M.Szeptycka, M.Tabarelli, T.Tavernet, J. P.Tchikilev, O.Tilquin, A.Timmermans, J.Tkatchev, L. G.Todorov, T.Toet, D. Z.Tomaradze, A.Tome, B.Tonazzo, A.Tortora, L.Transtromer, G.Treille, D.Trischuk, W.Tristram, G.Trombini, A.Troncon, C.Tsirou, A.Turluer, M-L.Tyapkin, I. A.Tyndel, M.Tzamarias, S.Ueberschaer, B.Ullaland, O.Uvarov, V.Valenti, G.Vallazza, E.Van Apeldoorn, G. W.Van Dam, P.Van Doninck, W. K.Van Eldik, J.Vassilopoulos, N.Vegni, G.Ventura, L.Venus, W.Verbeure, F.Verlato, M.Vertogradov, L. S.Vilanova, D.Vincent, P.Vitale, L.Vlasov, E.Vodopyanov, A. S.Vrba, V.Wahlen, H.Walck, C.Waldner, F.Weierstall, M.Weilhammer, P.Weiser, C.Wetherell, A. M.Wicke, D.Wickens, J. H.Wielers, M.Wilkinson, G. R.Williams, W. S. C.Winter, M.Witek, M.Woschnagg, K.Yip, K.Yushchenko, O.Zach, F.Zaitsev, A.Zalewska, A.Zalewski, P.Zavrtanik, D.Zevgolatakos, E.Zimin, N. I.Zito, M.Zontar, D.Zuberi, R.Zucchelli, G. C.Zumerle, G.
Source
Zeitschrift für Physik C Particles and Fields; March 1996, Vol. 72 Issue: 1 p31-38, 8p
Subject
Language
ISSN
01709739; 14315858
Abstract
The interference between initial and final state radiation in the processe+e−→μ+μ−at √s≈MZhas been studied by measuring the forward-backward asymmetry as a function of the acoplanarity angle between the final state muons. The interference is expected to be sensitive to the space-time separation of the initial and final state radiation. The measured asymmetry distribution has been compared to theoretical predictions using thekoralzgenerator, with and withoutinterference. The magnitude of the interference between initial and final state radiation was found to be of the order predicted and to follow the expected distribution. Using the theoretical predictions, a value ofhas been extracted. The interpretation of this result is discussed. There is an additional uncertainty in the estimate ofΓZfrom as yet uncalculated higher order interference terms. By assuming a value ofΓZconsistent with the world average, the data were used to estimate the size of these uncalculated corrections.