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Searches for gauge-mediated supersymmetry breaking topologies in e(+)e(-) collisions at centre-of-mass energies up to root s=209 GeV

Abbiendi, G. and Ainsley, C. and Akesson, P. F. and Alexander, G. and Anagnostou, G. and Anderson, K. J. and Arcelli, S. and Asai, S. and Axen, D. and Bailey, I. and Barberio, E. and Barillari, T. and Barlow, R. J. and Batley, R. J. and Bechtle, P. and Behnke, T. and Bell, K. W. and Bell, P. J. and Bella, G. and Bellerive, A. and Benelli, G. and Bethke, S. and Biebel, O. and Boeriu, O. and Bock, P. and Boutemeur, M. and Braibant, S. and Brown, R. M. and Burckhart, H. J. and Campana, S. and Capiluppi, P. and Carnegie, R. K. and Carter, A. A. and Carter, J. R. and Chang, C. Y. and Charlton, D. G. and Ciocca, C. and Csilling, A. and Cuffiani, M. and Dado, S. and De Roeck, A. and De Wolf, E. A. and Desch, K. and Dienes, B. and Dubbert, J. and Duchovni, E. and Duckeck, G. and Duerdoth, I. P. and Etzion, E. and Fabbri, F. and Ferrari, P. and Fiedler, F. and Fleck, I. and Ford, M. and Frey, A. and Gagnon, P. and Gary, J. W. and Geich-Gimbel, C. and Giacomelli, G. and Giacomelli, P. and Giunta, M. and Goldberg, J. and Gross, E. and Grunhaus, J. and Gruwe, M. and Gunther, P. O. and Gupta, A. and Hajdu, C. and Hamann, M. and Hanson, G. G. and Harel, A. and Hauschild, M. and Hawkes, C. M. and Hawkings, R. and Hemingway, R. J. and Herten, G. and Heuer, R. D. and Hill, J. C. and Horvath, D. and Igo-Kemenes, P. and Ishii, K. and Jeremie, H. and Jovanovic, P. and Junk, T. R. and Kanaya, N. and Kanzaki, J. and Karlen, D. and Kawagoe, K. and Kawamoto, T. and Keeler, R. K. and Kellogg, R. G. and Kennedy, Bw. and Klein, K. and Kluth, S. and Kobayashi, T. and Kobel, M. and Komamiya, S. and Kramer, T. and Krasznahorkay, A. and Krieger, P. and von Krogh, J. and Kuhl, T. and Kupper, M. and Lafferty, G. D. and Landsman, H. and Lanske, D. and Lellouch, D. and Letts, J. and Levinson, L. and Lillich, J. and Lloyd, S. L. and Loebinger, F. K. and Lu, J. and Ludwig, A. and Ludwig, J. and Mader, W. and Marcellini, S. and Marchaut, T. E. and Martin, A. J. and Mashimo, T. and Mattig, P. and McKenna, J. and McPherson, R. A. and Meijers, F. and Menges, W. and Merritt, F. S. and Mes, H. and Meyer, N. and Michelini, A. and Mihara, S. and Mikenberg, G. and Miller, D. J. and Mohr, W. and Mori, T. and Mutter, A. and Nagai, K. and Nakamuran, I. and Nanjo, H. and Neal, H. A. and Nisius, R. and O'Neale, S. W. and Oh, A. and Oreglia, M. J. and Orito, S. and Pahl, C. and Pasztor, G. and Pater, J. R. and Pilcher, J. E. and Pinfold, J. and Plane, D. E. and Pooth, O. and Przybycien, M. and Quadt, A. and Rabbertz, K. and Rembser, C. and Renkel, P. and Roney, J. M. and Rossi, A. M. and Rozen, Y. and Runge, K. and Sachs, K. and Saeki, T. and Sarkisyan, E. K. G. and Schaile, A. D. and Schaile, O. and Scharff-Hansen, P. and Schieck, J. and Schorner-Sadenius, T. and Schroder, M. and Schumacher, M. and Seuster, R. and Shears, T. G. and Shen, B. C. and Sherwood, P. and Skuja, A. and Smith, A. M. and Sobie, R. and Soldner-Rembold, S. and Spano, F. and Stahl, A. and Strom, D. and Strohmer, R. and Tarem, S. and Tasevsky, M. and Teuscher, R. and Thomson, M. A. and Torrence, E. and Toya, D. and Tran, P. and Trigger, I. and Trocsanyi, Z. and Tsur, E. and Turner-Watson, M. F. and Ueda, I. and Vollmer, C. F. and Vannerem, P. and Verzocchi, M. and Ward, C. P. and Ward, D. R. and Watkins, P. M. and Watson, A. T. and Watson, N. K. and Wells, P. S. and Wengler, T. and Wermes, N. and Wilson, J. A. and Wolf, G. and Wyatt, T. R. and Yamashita, S. and Zer-Zion, D. and Zivkovic, L. and , OPAL Collaboration (2006) Searches for gauge-mediated supersymmetry breaking topologies in e(+)e(-) collisions at centre-of-mass energies up to root s=209 GeV. European Physical Journal C: Particles and Fields, 46 (2). pp. 307-341. ISSN 1434-6044

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Abstract

Searches were performed for topologies predicted by gauge-mediated supersymmetry breaking models (GMSB). All possible lifetimes of the next-to-lightest SUSY particle (NLSP), either the lightest neutralino or slepton, decaying into the lightest SUSY particle, the gravitino, were considered. No evidence for GMSB signatures was found in the OPAL data sample collected at centre-of-mass energies up to root s = 209 GeV at LEP. Limits on the product of the production cross-sections and branching fractions are presented for all search topologies. To test the impact of the searches, a complete scan over the parameters of the minimal model of GMSB was performed. NLSP masses below 53.5 GeV/c(2) in the neutralino NLSP scenario, below 87.4 GeV/c(2) in the stau NLSP scenario and below 91.9 GeV/c(2) in the slepton co-NLSP scenario are excluded at 95% confidence level for all NLSP lifetimes. The scan determines constraints on the universal SUSY mass scale Lambda from the direct SUSY particle searches of Lambda > 40, 27, 21, 17, 15 TeV/c(2) for messenger indices N = 1, 2, 3, 4, 5 for all NLSP lifetimes.

Item Type: Article
Journal or Publication Title: European Physical Journal C: Particles and Fields
Subjects: Q Science > QC Physics
Departments: Faculty of Science and Technology > Physics
ID Code: 59455
Deposited By: ep_importer_pure
Deposited On: 08 Nov 2012 11:39
Refereed?: Yes
Published?: Published
Last Modified: 10 Apr 2014 00:16
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/59455

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