| Autor: |
C. Markou, G. Merino, E. Merle, Donato Creanza, P. Morawitz, John T Harvey, S. Wasserbaech, S. Werner, Alessandro Giassi, B. Pietrzyk, A. Ranieri, John H. L. Hansen, G.A. Blair, John-Bjarne Hansen, H. Dietl, M. Aleppo, Giuseppe Raso, G. Sguazzoni, Alain Bonissent, R. W. Clifft, Piero Giorgio Verdini, B. Michel, D. Fouchez, Lei Zhang, S. L. Cartwright, Dirk Zerwas, J.G. Lynch, G. Boix, Y. Saadi, J. Lefrangois, G. Rudolph, O. Callot, Nancy Marinelli, Jiali Lin, J.C. Thompson, Gerardo Ganis, Claus Grupen, I.J. Scott, A. Misiejuk, B. Gobbo, Jean-Claude Montret, N. A. Robertson, Jordan Nash, H. Videau, G. B. Taylor, P. Tempesta, Jie Zhang, R. Xu, Franco Ligabue, Marco Cattaneo, D. Schlatter, B. Renk, Roberto Dell'Orso, F. Hvlldorfer, Vitaliano Ciulli, J. A. Strong, H. Seywerd, Maria Smizanska, C. Mannert, R.W. Williams, E. Simopoulou, Lucia Silvestris, A. Moutoussi, J. C. Brient, Andre Tilquin, Yuehong Xie, L. M. Mir, Günther Dissertori, Gy. Wolf, Giuseppe Bagliesi, Boris Tuchming, J. J. Veillet, W. Mdnner, J. Boucrot, A. Gregorio, Val O'Shea, M H. Lehto, Duccio Abbaneo, J. F. Renardy, Alan Litke, Mario Maggi, Jean-Francois Grivaz, Q. Ouyang, Paul Hodgson, E. Langon, Elizabeth Locci, Francesco Ragusa, Peter Elmer, E. Graughs, Andrea Venturi, D.P.S. Ferguson, P. Negus, M. Pepi-Altarelli, Maria Pilar Casado, T.C. Greening, G. A. Cowan, W. Orejudos, Anna Colaleo, T. R. Edgecock, F. Foster, P. Girtler, Giovanna Selvaggi, O. Schneider, G. Faof, A. Ealet, Patrick Janot, P.S. Marrocchesi, P. Azzurri, J.M. Pascolo, J. Rothberg, Alessia Tricomi, Pierluigi Campana, Paolo Spagnolo, S. Dessagne, P. J. Dornan, A. Rougi, M. Girone, X. Huang, A. Pacheco, H. G. Sander, V. M. Ghete, G.P. Murtas, Gavin Davies, Werner Wiedenmann, J. P. Lees, Paolo Laurelli, M. C. Lemaire, F. Murtas, M. Chmeissani, Olivier Deschamps, Christian Zeitnitz, O. Leroy, Y. B. Pan, J. H. von Wimmersperg-Toeller, R. Beuselinck, M.-N. Minard, Georgios Daskalakis, Laurent Serin, J. Kennedy, A. Vayaki, E. Rohne, P. A. McNamara, Lan. Wu Sau, J. Putz, Roberto Tenchini, F. Ranjard, Emmerich Kneringer, H. Ruiz, Peter Hansen, G. Maggi, P. Pirez, S. Chen, Stephane Monteil, F. F. Martin, Markus Frank, Paul Hanke, S. Goodsir, A.W. Halley, N. Konstantinidis, Ziad Ajaltouni, C. Georgiopoulos, L. F. Thompson, Salvatore Nuzzo, R. Alemany, G. Prange, M. Corden, S. Dhamotharan, Richard Cavanaugh, S. Bravo, E. Fernandez, C. Goy, F. Machefert, F. Teubert, C. N. Booth, F. Ruggieri, G. Capon, I. Ferrante, V. Hepp, J. M. Crespo, Tommaso Boccali, P. Coyle, J. J. Walsh, E. Tournefier, Pascal Perret, F. Bossi, G. Chazelle, A. Putzer, J. Jousset, Michael Schmitt, G. Calderini, G. Giannini, M.D. Williams, C. Bozzi, P. Colas, Giuseppe Iaselli, A. Antonelli, Andrea Valassi, I. Videau, C. Loomis, G. Ellis, Georg Zobernig, S. Schmeling, M. A. McNeil, J. Nielsen, Fabrizio Palla, R. W. L. Jones, B. Rensch, W. Cameron, A. Juste, J. K. Sedgbeer, P. Maley, M. Swynghedauw, Roger Forty, H. Drevermann, G. Sanguinetti, Ramon Miquel, A. S. Thompson, J B. De Vivie de Rigie, J.H. Dann, G. Hughes, A.E. Wright, M. G. Green, V. Chiarella, P. Teixeira-Dias, C. Geweniger, Gunter Quast, Hasko Stenzel, M. Fernandez-Bosman, Ph Heusse, T. Medcalf, F. Podlyski, M. Chalmers, J. Coles, F. Gianotti, P. R. Norton, Pierre Henrard, G. Parrini, F. Badaud, M. I. Williams, H. Hu, Imma Riu, C. Borean, Xin Wu, M. Davier, J. Hess, M. Krvcker, G. Bencivenni, Reisaburo Tanaka, J. Nowell, A. J. Finch, D. Decamp, S. Schael, S.R. Armstrong, P.G. Buck, H. G. Moser, Marumi Kado, L. Rolandi, J. D. Hansen, G. Leibenguth, H. Przysiezniak, P. Seager, Mario Antonelli, André Rosowsky, B. Bloch-Devaux, C. K. Bowdery, J. Carr, D.E. Hutchcroft, D. R. Botterill, F. Combley, M. Wunsch, G. Bologna, L. Garrido, P. Ghez, M. De Palma, P. Mato, Stephane Jezequel, B.S. Nilsson, Eb Martin, A. Blondel, A. Minten, L. Passalacqua, S. Brandt, O.J. Hayes, U. Sieler, R. Settles, E. E. Kluge, Dominique Pallin, Simone Gilardoni, J. Kile, M. Martmnez, A. Trabelsi, A. Jacholkowska, S. Xue, A. Bvhrer, Aristotelis Kyriakis, Giuseppe Zito, K. Affholderbach, B. Jost, R. Barate, Ting Wang, L.T. Jones, D. M. Binnie, Ettore Focardi, Alain Falvard, John Rander, S. Jin, B. Vallage, Karl Jakobs, Y. S. Gao, H.Y. Kim, Alberto Messineo, Evelyn Thomson, I. Giehl, T. Ziegler, K. Zachariadou, G. Mannocchi, J.J. Ward, B. Fabbro, W. Zhao, A. Wddndnen, H. Wachsmuth, B. Rdven, David J. Smith, S.N. Black, Laurent Duflot, S. Gonzalez, K. Tittel, Konrad Kleinknecht, F. Cerutti, C. Guicheney, C. Ferdi, W. Tejessy, G. Rizzo, Ian R Tomalin, D. Kuhn |
| Popis: |
Searches for topologies characteristic of Gauge Mediated SUSY Breaking models (GMSB) are performed by analysing 173.6 pb^-1 of data collected at Ecm = 188.6~GeV with the ALEPH detector.These topologies include acoplanar photons, non-pointing single photon, acoplanar leptons, large impact parameter leptons, detached slepton decay vertices, heavy stable charged sleptons and four leptons plus missing energy final states.No evidence for these new phenomena is observed and limits on production cross sections and sparticle masses are derived. A scan of a minimal GMSB parameter space is performed and model dependent lower limits of about 45 GeV/c^2 on the next-to-lightest supersymmetric particle (NLSP) mass and of about 9 TeV on the mass scale parameter Lambda are derived, independently of the NLSP lifetime. |
