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Study of dimuon production in photon-photon collisions and measurement of QED photon structure functions at LEP

Abreu, P.; Adam, W.; Adye, T.; Adzic, P.; Ajinenko, I.; Albrecht, Z.; Alderweireld, T.; Alekseev, G. D.; Alemany, R. and Allmendinger, T., et al. (2001) In European Physical Journal C 19(1). p.15-28
Abstract

Muon pair production in the process e+e- → e+e- μ+μ- is studied using the data taken at LEP1 (√s ≃ mz) with the DELPHI detector during the years 1992-1995. The corresponding integrated luminosity is 138.5 pb-1. The QED predictions have been tested over the whole Q2 range accessible at LEP1 (from several GeV2/c4 to several hundred GeV2/c4) by comparing experimental distributions with distributions resulting from Monte Carlo simulations using various generators. Selected events are used to extract the leptonic photon structure function Fγ 2. Azimuthal correlations are used to obtain... (More)

Muon pair production in the process e+e- → e+e- μ+μ- is studied using the data taken at LEP1 (√s ≃ mz) with the DELPHI detector during the years 1992-1995. The corresponding integrated luminosity is 138.5 pb-1. The QED predictions have been tested over the whole Q2 range accessible at LEP1 (from several GeV2/c4 to several hundred GeV2/c4) by comparing experimental distributions with distributions resulting from Monte Carlo simulations using various generators. Selected events are used to extract the leptonic photon structure function Fγ 2. Azimuthal correlations are used to obtain information on additional structure functions, Fγ A and Fγ B, which originate from interference terms of the scattering amplitudes. The measured ratios Fγ A/Fγ 2 and FγB/Fγ 2 are significantly different from zero and consistent with QED predictions.

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European Physical Journal C
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19
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Springer
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  • scopus:0042366359
ISSN
1434-6044
DOI
10.1007/s100520100592
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@article{bf03f3ec-8542-4989-913b-48e843529d59,
  abstract     = {<p>Muon pair production in the process e<sup>+</sup>e<sup>-</sup> → e<sup>+</sup>e<sup>-</sup> μ<sup>+</sup>μ<sup>-</sup> is studied using the data taken at LEP1 (√s ≃ mz) with the DELPHI detector during the years 1992-1995. The corresponding integrated luminosity is 138.5 pb<sup>-1</sup>. The QED predictions have been tested over the whole Q<sup>2</sup> range accessible at LEP1 (from several GeV<sup>2</sup>/c<sup>4</sup> to several hundred GeV<sup>2</sup>/c<sup>4</sup>) by comparing experimental distributions with distributions resulting from Monte Carlo simulations using various generators. Selected events are used to extract the leptonic photon structure function F<sup>γ</sup> <sub>2</sub>. Azimuthal correlations are used to obtain information on additional structure functions, F<sup>γ</sup> <sub>A</sub> and F<sup>γ</sup> <sub>B</sub>, which originate from interference terms of the scattering amplitudes. The measured ratios F<sup>γ</sup> <sub>A</sub>/F<sup>γ</sup> <sub>2</sub> and F<sub>γB</sub>/F<sup>γ</sup> <sub>2</sub> are significantly different from zero and consistent with QED predictions.</p>},
  author       = {Abreu, P. and Adam, W. and Adye, T. and Adzic, P. and Ajinenko, I. and Albrecht, Z. and Alderweireld, T. and Alekseev, G. D. and Alemany, R. and Allmendinger, T. and Allport, P. P. and Almehed, S. and Amaldi, U. and Amapane, N. and Amato, S. and Anassontzis, E. G. and Andersson, P. and Andreazza, A. and Andringa, S. and Antilogus, P. and Apel, W. D. and Arnoud, Y. and Åsman, B. and Augustin, J. E. and Augustinus, A. and Baillon, P. and Bambade, P. and Barao, F. and Barbiellini, G. and Barbier, R. and Bardin, D. Y. and Barker, G. and Baroncelli, A. and Battaglia, M. and Baubillier, M. and Becks, K. H. and Begalli, M. and Behrmann, A. and Beilliere, P. and Belokopytov, Yu and Benekos, N. C. and Benvenuti, A. C. and Berat, C. and Berggren, M. and Bertrand, D. and Besancon, M. and Bigi, M. and Bilenky, M. S. and Bizouard, M. A. and Bloch, D. and Blom, H. M. and Bonesini, M. and Boonekamp, M. and Booth, P. S.L. and Borgland, A. W. and Borisov, G. and Bosio, C. and Botner, O. and Boudinov, E. and Bouquet, B. and Bourdarios, C. and Bowcock, T. J.V. and Boyko, I. and Bozovic, I. and Bozzo, M. and Bracko, M. and Branchini, P. and Brenner, R. A. and Bruckman, P. and Brunet, J. M. and Bugge, L. and Buran, T. and Buschbeck, B. and Buschmann, P. and Cabrera, S. and Caccia, M. and Calvi, M. and Camporesi, T. and Canale, V. and Carena, F. and Carroll, L. and Caso, C. and Castillo Gimenez, M. V. and Cattai, A. and Cavallo, F. R. and Chabaud, V. and Charpentier, Ph and Checchia, P. and Chelkov, G. A. and Chierici, R. and Chliapnikov, P. and Chochula, P. and Chorowicz, V. and Chudoba, J. and Cieslik, K. and Collins, P. and Contri, R. and Cortina, E. and Cosme, G. and Cossutti, F. and Crawley, H. B. and Crennell, D. and Crepe, S. and Crosetti, G. and Cuevas Maestro, J. and Czellar, S. and Davenport, M. and Da Silva, W. and Della Ricca, G. and Delpierre, P. and Demaria, N. and de Angelis, A. and de Boer, W. and de Clercq, C. and de Lotto, B. and de Min, A. and de Paula, L. and Dijkstra, H. and Di Ciaccio, L. and Dolbeau, J. and Doroba, K. and Dracos, M. and Drees, J. and Dris, M. and Duperrin, A. and Durand, J. D. and Eigen, G. and Ekelof, T. and Ekspong, G. and Ellert, M. and Elsing, M. and Engel, J. P. and Espirito Santo, M. and Fanourakis, G. and Fassouliotis, D. and Fayot, J. and Feindt, M. and Fenyuk, A. and Ferrer, A. and Ferrer-Ribas, E. and Ferro, F. and Fichet, S. and Firestone, A. and Flagmeyer, U. and Foeth, H. and Fokitis, E. and Fontanelli, F. and Franek, B. and Frodesen, A. G. and Fruhwirth, R. and Fulda-Quenzer, F. and Fuster, J. and Galloni, A. and Gamba, D. and Gamblin, S. and Gandelman, M. and Garcia, C. and Gaspar, C. and Gaspar, M. and Gasparini, U. and Gavillet, Ph and Gazis, E. N. and Gele, D. and Ghodbane, N. and Gil, I. and Glege, F. and Gokieli, R. and Golob, B. and Gomez-Ceballos, G. and Goncalves, P. and Gonzalez Caballero, I. and Gopal, G. and Gorn, L. and Gouz, Yu and Gracco, V. and Grahl, J. and Graziani, E. and Gris, P. and Grosdidier, G. and Grzelak, K. and Guy, J. and Haag, C. and Hahn, F. and Hahn, S. and Haider, S. and Hallgren, A. and Hamacher, K. and Hansen, J. and Harris, F. J. and Hedberg, V. and Heising, S. and Hernandez, J. J. and Herquet, P. and Herr, H. and Hessing, T. L. and Heuser, J. M. and Higon, E. and Holmgren, S. O. and Holt, P. J. and Hoorelbeke, S. and Houlden, M. and Hrubec, J. and Huber, M. and Huet, K. and Hughes, G. J. and Hultqvist, K. and Jackson, J. N. and Jacobsson, R. and Jalocha, P. and Janik, R. and Jarlskog, Ch and Jarlskog, G. and Jarry, P. and Jean-Marie, B. and Jeans, D. and Johansson, E. K. and Jonsson, P. and Joram, C. and Juillot, P. and Jungermann, L. and Kapusta, F. and Karafasoulis, K. and Katsanevas, S. and Katsoufis, E. C. and Keranen, R. and Kernel, G. and Kersevan, B. P. and Khomenko, B. A. and Khovanski, N. N. and Kiiskinen, A. and King, B. and Kinvig, A. and Kjaer, N. J. and Klapp, O. and Klein, H. and Kluit, P. and Kokkinias, P. and Kostioukhine, V. and Kourkoumelis, C. and Kouznetsov, O. and Krammer, M. and Kriznic, E. and Krumstein, Z. and Kubinec, P. and Kurowska, J. and Kurvinen, K. and Lamsa, J. W. and Lane, D. W. and Lapin, V. and Laugier, J. P. and Lauhakangas, R. and Leder, G. and Ledroit, F. and Lefebure, V. and Leinonen, L. and Leisos, A. and Leitner, R. and Lemonne, J. and Lenzen, G. and Lepeltier, V. and Lesiak, T. and Lethuillier, M. and Libby, J. and Liebig, W. and Liko, D. and Lipniacka, A. and Lippi, I. and Loerstad, B. and Loken, J. G. and Lopes, J. H. and Lopez, J. M. and Lopez-Fernandez, R. and Loukas, D. and Lutz, P. and Lyons, L. and MacNaughton, J. and Mahon, J. R. and Maio, A. and Malek, A. and Malmgren, T. G.M. and Maltezos, S. and Malychev, V. and Mandl, F. and Marco, J. and Marco, R. and Marechal, B. and Margoni, M. and Marin, J. C. and Mariotti, C. and Markou, A. and Martinez-Rivero, C. and Martinez-Vidal, F. and Marti i Garcia, S. and Masik, J. and Mastroyiannopoulos, N. and Matorras, F. and Matteuzzi, C. and Matthiae, G. and Mazzucato, F. and Mazzucato, M. and Mc Cubbin, M. and Mc Kay, R. and Mc Nulty, R. and Mc Pherson, G. and Meroni, C. and Meyer, W. T. and Miagkov, A. and Migliore, E. and Mirabito, L. and Mitaroff, W. A. and Mjoernmark, U. and Moa, T. and Moch, M. and Moeller, R. and Moenig, K. and Monge, M. R. and Moraes, D. and Moreau, X. and Morettini, P. and Morton, G. and Mueller, U. and Muenich, K. and Mulders, M. and Mulet-Marquis, C. and Muresan, R. and Murray, W. J. and Muryn, B. and Myatt, G. and Myklebust, T. and Naraghi, F. and Nassiakou, M. and Navarria, F. L. and Navas, S. and Nawrocki, K. and Negri, P. and Neufeld, N. and Nicolaidou, R. and Nielsen, B. S. and Niezurawski, P. and Nikolenko, M. and Nomokonov, V. and Nygren, A. and Obraztsov, V. and Olshevski, A. G. and Onofre, A. and Orava, R. and Orazi, G. and Osterberg, K. and Ouraou, A. and Paganoni, M. and Paiano, S. and Pain, R. and Paiva, R. and Palacios, J. and Palka, H. and Papadopoulou, Th D. and Papageorgiou, K. and Pape, L. and Parkes, C. and Parodi, F. and Parzefall, U. and Passeri, A. and Passon, O. and Pavel, T. and Pegoraro, M. and Peralta, L. and Pernicka, M. and Perrotta, A. and Petridou, C. and Petrolini, A. and Phillips, H. T. and Pierre, F. and Pimenta, M. and Piotto, E. and Podobnik, T. and Pol, M. E. and Polok, G. and Poropat, P. and Pozdniakov, V. and Privitera, P. and Pukhaeva, N. and Pullia, A. and Radojicic, D. and Ragazzi, S. and Rahmani, H. and Rames, J. and Ratoff, P. N. and Read, A. L. and Rebecchi, P. and Redaelli, N. G. and Regler, M. and Rehn, J. and Reid, D. and Reinhardt, R. and Renton, P. B. and Resvanis, L. K. and Richard, F. and Ridky, J. and Rinaudo, G. and Ripp-Baudot, I. and Rohne, O. and Romero, A. and Ronchese, P. and Rosenberg, E. I. and Rosinsky, P. and Roudeau, P. and Rovelli, T. and Royon, Ch and Ruhlmann-Kleider, V. and Ruiz, A. and Saarikko, H. and Sacquin, Y. and Sadovsky, A. and Sajot, G. and Salt, J. and Sampsonidis, D. and Sannino, M. and Schwemling, Ph and Schwering, B. and Schwickerath, U. and Scuri, F. and Seager, P. and Sedykh, Y. and Segar, A. M. and Seibert, N. and Sekulin, R. and Shellard, R. C. and Siebel, M. and Simard, L. and Simonetto, F. and Sisakian, A. N. and Smadja, G. and Smirnov, N. and Smirnova, O. and Smith, G. R. and Sopczak, A. and Sosnowski, R. and Spassov, T. and Spiriti, E. and Squarcia, S. and Stanescu, C. and Stanic, S. and Stanitzki, M. and Stevenson, K. and Stocchi, A. and Strauss, J. and Strub, R. and Stugu, B. and Szczekowski, M. and Szeptycka, M. and Tabarelli, T. and Taffard, A. and Tchikilev, O. and Tegenfeldt, F. and Terranova, F. and Thomas, J. and Timmermans, J. and Tinti, N. and Tkatchev, L. G. and Tobin, M. and Todorova, S. and Tomaradze, A. and Tome, B. and Tonazzo, A. and Tortora, L. and Tortosa, P. and Transtromer, G. and Treille, D. and Tristram, G. and Trochimczuk, M. and Troncon, C. and Turluer, M. L. and Tyapkin, I. A. and Tzamarias, S. and Ullaland, O. and Uvarov, V. and Valenti, G. and Vallazza, E. and Vander Velde, C. and van Dam, P. and van den Boeck, W. and van Doninck, W. K. and van Eldik, J. and van Lysebetten, A. and van Remortel, N. and van Vulpen, I. and Vegni, G. and Ventura, L. and Venus, W. and Verbeure, F. and Verdier, P. and Verlato, M. and Vertogradov, L. S. and Verzi, V. and Vilanova, D. and Vitale, L. and Vlasov, E. and Vodopyanov, A. S. and Voulgaris, G. and Vrba, V. and Wahlen, H. and Walck, C. and Washbrook, A. J. and Weiser, C. and Wicke, D. and Wickens, J. H. and Wilkinson, G. R. and Winter, M. and Witek, M. and Wolf, G. and Yi, J. and Yushchenko, O. and Zalewska, A. and Zalewski, P. and Zavrtanik, D. and Zevgolatakos, E. and Zimin, N. I. and Zintchenko, A. and Zoller, Ph and Zucchelli, G. C. and Zumerle, G.},
  issn         = {1434-6044},
  language     = {eng},
  number       = {1},
  pages        = {15--28},
  publisher    = {Springer},
  series       = {European Physical Journal C},
  title        = {Study of dimuon production in photon-photon collisions and measurement of QED photon structure functions at LEP},
  url          = {http://dx.doi.org/10.1007/s100520100592},
  volume       = {19},
  year         = {2001},
}