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A study of single and multi-photon production in e+e−collisions at centre-of-mass energies of 130 and 136 GeV
Authors :
Buskulic, D. De Bonis, I. Decamp, D. Ghez, P. Goy, C. Lees, J.-P. Lucotte, A. Minard, M.-N. Odier, P. Pietrzyk, B. Casado, M.P. Chmeissani, M. Crespo, J.M. Delfino, M. Efthymiopoulos, I. Fernandez, E. Fernandez-Bosman, M. Garrido, Ll. Juste, A. Martinez, M. Orteu, S. Padilla, C. Pascual, A. Perlas, J.A. Riu, I. Sanchez, F. Teubert, F. Colaleo, A. Creanza, D. de Palma, M. Gelao, G. Girone, M. Iaselli, G. Maggi, G. Maggi, M. Marinelli, N. Nuzzo, S. Ranieri, A. Raso, G. Ruggieri, F. Selvaggi, G. Silvestris, L. Tempesta, P. Zito, G. Huang, X. Lin, J. Ouyang, Q. Wang, T. Xie, Y. Xu, R. Xue, S. Zhang, J. Zhang, L. Zhao, W. Alemany, R. Bazarko, A.O. Cattaneo, M. Comas, P. Coyle, P. Drevermann, H. Forty, R.W. Frank, M. Hagelberg, R. Harvey, J. Janot, P. Jost, B. Kneringer, E. Knobloch, J. Lehraus, I. Lutters, G. Martin, E.B. Mato, P. Minten, A. Miquel, R. Mir, Ll.M. Moneta, L. Oest, T. Pacheco, A. Pusztaszeri, J.-F. Ranjard, F. Rensing, P. Rolandi, L. Schlatter, D. Schmelling, M. Schneider, O. Tejessy, W. Tomalin, I.R. Venturi, A. Wachsmuth, H. Wagner, A. Ajaltouni, Z. Barrès, A. Boyer, C. Falvard, A. Gay, P. Guicheney, C. Henrard, P. Jousset, J. Michel, B. Monteil, S. Montret, J-C. Pallin, D. Perret, P. Podlyski, F. Proriol, J. Rosnet, P. Rossignol, J.-M. Fearnley, T. Hansen, J.B. Hansen, J.D. Hansen, J.R. Hansen, P.H. Nilsson, B.S. Wäänänen, A. Kyriakis, A. Markou, C. Simopoulou, E. Siotis, I. Vayaki, A. Zachariadou, K. Blondel, A. Brient, J.C. Rougé, A. Rumpf, M. Valassi, A. Videau, H. Focardi, E. Parrini, G. Corden, M. Georgiopoulos, C. Jaffe, D.E. Antonelli, A. Bencivenni, G. Bologna, G. Bossi, F. Campana, P. Capon, G. Casper, D. Chiarella, V. Felici, G. Laurelli, P. Mannocchi, G. Murtas, F. Murtas, G.P. Passalacqua, L. Pepe-Altarelli, M. Curtis, L. Dorris, S.J. Halley, A.W. Knowles, I.G. Lynch, J.G. O'Shea, V. Raine, C. Reeves, P. Scarr, J.M. Smith, K. Thompson, A.S. Thomson, F. Thorn, S. Turnbull, R.M. Becker, U. Geweniger, C. Graefe, G. Hanke, P. Hansper, G. Hepp, V. Kluge, E.E. Putzer, A. Rensch, B. Schmidt, M. Sommer, J. Stenzel, H. Tittel, K. Werner, S. Wunsch, M. Abbaneo, D. Beuselinck, R. Binnie, D.M. Cameron, W. Dornan, P.J. Moutoussi, A. Nash, J. Sedgbeer, J.K. Stacey, A.M. Williams, M.D. Dissertori, G. Girtler, P. Kuhn, D. Rudolph, G. Betteridge, A.P. Bowdery, C.K. Colrain, P. Crawford, G. Finch, A.J. Foster, F. Hughes, G. Sloan, T. Whelan, E.P. Williams, M.I. Galla, A. Greene, A.M. Hoffmann, C. Kleinknecht, K. Quast, G. Renk, B. Rohne, E. Sander, H.-G. van Gemmeren, P. Zeitnitz, C. Aubert, J.J. Bencheikh, A.M. Benchouk, C. Bonissent, A. Bujosa, G. Calvet, D. Carr, J. Diaconu, C. Konstantinidis, N. Payre, P. Rousseau, D. Talby, M. Sadouki, A. Thulasidas, M. Tilquin, A. Trabelsi, K. Aleppo, M. Ragusa, F. Abt, I. Assmann, R. Bauer, C. Blum, W. Dietl, H. Dydak, F. Ganis, G. Gotzhein, C. Jakobs, K. Kroha, H. Lütjens, G. Lutz, G. Männer, W. Moser, H.-G. Richter, R. Rosado-Schlosser, A. Schael, S. Settles, R. Seywerd, H. Denis, R.St. Wiedenmann, W. Wolf, G. Boucrot, J. Callot, O. Cordier, A. Davier, M. Duflot, L. Grivaz, J.-F. Heusse, Ph. Höcker, A. Jacquet, M. Kim, D.W. Le Diberder, F. Lefrançois, J. Lutz, A.-M. Nikolic, I. Park, H.J. Park, I.C. Schune, M.-H. Simion, S. Veillet, J.-J. Videau, I. Zerwas, D. Azzurri, P. Bagliesi, G. Batignani, G. Bettarini, S. Bozzi, C. Calderini, G. Carpinelli, M. Ciocci, M.A. Ciulli, V. Dell'Orso, R. Fantechi, R. Ferrante, I. Giassi, A. Gregorio, A. Ligabue, F. Lusiani, A. Marrocchesi, P.S. Messineo, A. Palla, F. Rizzo, G. Sanguinetti, G. Sciabà, A. Spagnolo, P. Steinberger, J. Tenchini, R. Tonelli, G. Vannini, C. Verdini, P.G. Walsh, J. Blair, G.A. Bryant, L.M. Cerutti, F. Chambers, J.T. Gao, Y. Green, M.G. Medcalf, T. Perrodo, P. Strong, J.A. von Wimmersperg-Toeller, J.H. Botterill, D.R. Clifft, R.W. Edgecock, T.R. Haywood, S. Maley, P. Norton, P.R. Thompson, J.C. Wright, A.E. Bloch-Devaux, B. Colas, P. Emery, S. Kozanecki, W. Lançon, E. Lemaire, M.C. Locci, E. Marx, B. Perez, P. Rander, J. Renardy, J.-F. Roussarie, A. Schuller, J.-P. Schwindling, J. Trabelsi, A. Vallage, B. Black, S.N. Dann, J.H. Johnson, R.P. Kim, H.Y. Litke, A.M. McNeil, M.A. Taylor, G. Booth, C.N. Boswell, R. Brew, C.A.J. Cartwright, S. Combley, F. Koksal, A. Letho, M. Newton, W.M. Reeve, J. Thompson, L.F. Böhrer, A. Brandt, S. Büscher, V. Cowan, G. Grupen, C. Saraiva, P. Smolik, L. Stephan, F. Apollonio, M. Bosisio, L. Della Marina, R. Giannini, G. Gobbo, B. Musolino, G. Putz, J. Rothberg, J. Wasserbaech, S. Williams, R.W. Armstrong, S.R. Bellantoni, L. Elmer, P. Feng, Z. Ferguson, D.P.S. Gao, Y.S. González, S. Grahl, J. Greening, T.C. Hayes, O.J. Hu, H. McNamara, P.A. Nachtman, J.M. Orejudos, W. Pan, Y.B. Saadi, Y. Schmitt, M. Scott, I.J. Walsh, A.M. Lan Wu, Sau Wu, X. Yamartino, J.M. Zheng, M. Zobernig, G.
Source :
Physics Letters B; September 1996, Vol. 384 Issue: 1-4 p333-342, 10p
Publication Year :
1996
Abstract
The production of final states involving one or more energetic photons from e+e−collisions at high energies is studied using data collected by the ALEPH detector at LEP. The data consist of two samples of 2.9 pb−1each, recorded at centre-of-mass energies of 130 GeV and 136 GeV. The data are in agreement with the predictions of the Standard Model. From an analysis of two-photon final states new limits are placed on the parameters of models involving e+e−γγ contact interactions and excited electrons. The 95% confidence level lower limits on the QED cut-off parameters Λ+and Λ−are found to be 169 and 132 GeV respectively.
Details
Language :
English
ISSN :
03702693
Volume :
384
Issue :
1-4
Database :
Supplemental Index
Journal :
Physics Letters B
Publication Type :
Periodical
Accession number :
ejs3186514
Full Text :
https://doi.org/10.1016/0370-2693(96)00930-6