Search for gauge mediated SUSY breaking topologies at root s similar to 189 GeV

Barate, R; Decamp, D; Ghez, P; Goy, C; Jezequel, S; Lees, Jp; Martin, F; Merle, E; Minard, Mn; Pietrzyk, B; Alemany, R; Bravo, S; Casado, Mp; Chmeissani, M; Crespo, Jm; Fernandez, E; Fernandez Bosman, M; Garrido, L; Grauges, E; Juste, A; Martinez, M; Merino, G; Miquel, R; Mir, Lm; Morawitz, P; Pacheco, A; Riu, I; Ruiz, H; Colaleo, A; Creanza, D; de Palma, M; Iaselli, G; Maggi, G; Maggi, M; Nuzzo, S; Ranieri, A; Raso, G; Ruggieri, F; Selvaggi, G; Silvestris, L; Tempesta, P; Tricomi, A; Zito, G; Huang, X; Lin, J; Ouyang, Q; Wang, T; Xie, Y; Xu, R; Xue, S; Zhang, J; Zhang, L; Zhao, W; Abbaneo, D; Boix, G; Buchmuller, O; Cattaneo, M; Cerutti, F; Ciulli, V; Davies, G; Dissertori, G; Drevermann, H; Forty, Rw; Frank, M; Gianotti, F; Greening, Tc; Halley, Aw; Hansen, Jb; Harvey, J; Janot, P; Jost, B; Kado, M; Leroy, O; Maley, P; Mato, P; Minten, A; Moutoussi, A; Ranjard, F; Rolandi, L; Schlatter, D; Schmitt, M; Schneider, O; Spagnolo, P; Tejessy, W; Teubert, F; Tournefier, E; Valassi, A; Wright, Ae; Ajaltouni, Z; Chazelle, Fbg; Deschamps, O; Dessagne, S; Falvard, A; Ferdi, C; Gay, P; Guicheney, C; Henrard, P; Jousset, J; Michel, B; Monteil, S; Montret, Jc; Pallin, D; Pascolo, Jm; Perret, P; Podlyski, F; Hansen, Jd; Hansen, Jr; Hansen, Ph; Nilsson, Bs; Rensch, B; Waananen, A; Daskalakis, G; Kyriakis, A; Markou, C; Simopoulou, E; Vayaki, A; Blondel, A; Brient, Jc; Machefert, F; Rouge, A; Swynghedauw, M; Tanaka, R; Videau, H; Focardi, E; Parrini, G; Zachariadou, K; Corden, M; Georgiopoulos, C; Antonelli, A; Bencivenni, G; Bologna, G; Bossi, F; Campana, P; Capon, G; Chiarella, V; Laurelli, P; Mannocchi, G; Murtas, F; Murtas, Gp; Passalacqua, L; Pepe Altarelli, M; Chalmers, M; Kennedy, J; Lynch, Jg; Negus, P; O'Shea, V; Raeven, B; Smith, D; Teixeira Dias, P; Thompson, As; Ward, Jj; Cavanaugh, R; Dhamotharan, S; Geweniger, C; Hanke, P; Hepp, V; Kluge, Ee; Leibenguth, G; Putzer, A; Tittel, K; Werner, S; Wunsch, M; Beuselinck, R; Binnie, Dm; Cameron, W; Dornan, Pj; Girone, M; Goodsir, S; Marinelli, N; Martin, Eb; Nash, J; Nowell, J; Przysiezniak, H; Sciaba, A; Sedgbeer, Jk; Thompson, Jc; Thomson, E; Williams, Md; Ghete, Vm; Girtler, P; Kneringer, E; Kuhn, D; Rudolph, G; Bowdery, Ck; Buck, Pg; Ellis, G; Finch, Aj; Foster, F; Hughes, G; Jones, Rwl; Robertson, Na; Smizanska, M; Williams, Mi; Giehl, I; Holldorfer, F; Jakobs, K; Kleinknecht, K; Krocker, M; Muller, As; Nurnberger, Ha; Quast, G; Renk, B; Rohne, E; Sander, Hg; Schmeling, S; Zeitnitz, Hwc; Ziegler, T; Bonissent, A; Carr, J; Coyle, P; Ealet, A; Fouchez, D; Payre, P; Rousseau, D; Tilquin, A; Aleppo, M; Antonelli, M; Gilardoni, S; Ragusa, F; Buscher, V; Dietl, H; Ganis, G; Huttmann, K; Lutjens, G; Mannert, C; Manner, W; Moser, Hg; Schael, S; Settles, R; Seywerd, H; Stenzel, H; Wiedenmann, W; Wolf, G; Azzurri, P; Boucrot, J; Callot, O; Chen, S; Davier, M; Duflot, L; Grivaz, Jf; Heusse, P; Jacholkowska, A; Lefrancois, J; Serin, L; Veillet, Jj; Videau, I; de Regie JBD,; Zerwas, D; Bagliesi, C; Boccali, T; Bozzi, C; Calderini, G; Dell'Orso, R; Ferrante, Isidoro; Giassi, A; Gregorio, A; Ligabue, F; Marrocchesi, Ps; Messineo, ALBERTO MARIA; Palla, F; Rizzo, Giuliana; Sanguinetti, G; Sguazzoni, G; Tenchini, R; Venturi, A; Verdini, Pg; Blair, Ga; Coles, J; Cowan, G; Green, Mg; Hutchcroft, De; Jones, Lt; Medcalf, T; Strong, Ja; Botterill, Dr; Clifft, Rw; Edgecock, Tr; Norton, Pr; Tomalin, Ir; Bloch Devaux, B; Colas, P; Fabbro, B; Faif, G; Laucon, E; Lemaire, Mc; Locci, E; Perez, P; Rander, J; Renardy, Jf; Rosowsky, A; Seager, P; Trabelsi, A; Tuchming, B; Vallage, B; Black, Sn; Dann, Jh; Loomis, C; Kim, Hy; Konstantinidis, N; Litke, Am; Mcneil, Ma; Taylor, G; Booth, Cn; Cartwright, S; Combley, F; Hodgson, Pn; Lehto, M; Thompson, Lf; Affholderbach, K; Bohrer, A; Brandt, S; Grupen, C; Hess, J; Misiejuk, A; Prange, G; Sieler, U; Borean, C; Giannini, G; Gobbo, B; Putz, J; Rothberg, J; Wasserbaech, S; Williams, Rw; Armstrong, Sr; Elmer, P; Ferguson, Dps; Gao, Y; Gonzalez, S; Hayes, Oj; Hu, H; Jin, S; Kile, J; Mcnamara, Pa; Nielsen, J; Orejudos, W; Pan, Yb; Saadi, Y; Scott, Ij; Walsh, J; von Wimmersperg Toeller JH,; Wu, Sl; Wu, X; Zobernig, G.

doi:10.1007/s100520050004

Searches for topologies characteristic of Gauge Mediated SUSY Breaking models (GMSB) are performed by analysing 173.6 pb(-1) of data collected at root s = 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.