| Thème(s) : |
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Physique/Physique des Hautes Energies - Expérience
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| Titre : |
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Search for diphoton events with large missing transverse momentum in 7 TeV proton-proton collision data with the ATLAS detector |
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| Auteur : |
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G. Aad, S. Albrand1, M.L. Andrieux1, Q. Buat1, B. Clement1, J. Collot1, S. Crépé-Renaudin1, B. Dechenaux1, T. Delemontex1, P.A. Delsart1, M.H. Genest1, J.Y. Hostachy1, E. Laisne1, F. Ledroit-Guillon1, A. Lleres1, A. Lucotte1, F. Malek1, J. Stark1, X. Sun1, B. Trocmé1, J. Wang1, C. Weydert1, C. Biscarat2, E. Cogneras2, G. Rahal2, F. Vannucci3, 4, S. Abdel Khalek5, H. Abreu5, N. Andari5, C. Arnault5, E. Augé5, P. Barrillon5, M. Benoit5, S. Binet5, C. Bourdarios5, C. de La Taille5, J.B. De Vivie De Regie5, L. Duflot5, M. Escalier5, L. Fayard5, D. Fournier5, J.-F. Grivaz5, S. Henrot-Versillé5, J. Hrivnac5, L. Iconomidou-Fayard5, J. Idarraga5, M. Kado5, N. Lorenzo Martinez5, A. Lounis5, N. Makovec5, P. Matricon5, F. Niedercorn5, L. Poggioli5, P. Puzo5, A. Renaud5, D. Rousseau5, G. Rybkin5, J.B. Sauvan5, J. Schaarschmidt5, A.C. Schaffer5, L. Serin5, S. Simion5, R. Tanaka5, M. Teinturier5, J.J. Veillet5, I. Vukotic5, F. Wicek5, D. Zerwas5, Z. Zhang5, L. Aperio Bella6, B. Aubert6, N. Berger6, J. Colas6, M. Delmastro6, L. Di Ciaccio6, T.K.O. Doan6, S. Elles6, C. Goy6, T. Hryn'Ova6, S. Jézéquel6, M. Kataoka6, J. Labbe6, R. Lafaye6, J. Leveque6, V.P. Lombardo6, N. Massol6, P. Perrodo6, E. Petit6, H. Przysiezniak6, E. Richter-Was6, G. Sauvage6, E. Sauvan6, M. Schwoerer6, T. Todorov6, D. Tsionou6, I. Wingerter-Seez6, R. Zitoun6, D. Boumediene7, E. Busato7, D. Calvet7, S. Calvet7, R. Camacho Toro7, D. Cinca7, J. Donini7, R. Febbraro7, N. Ghodbane7, Ph. Gris7, C. Guicheney7, H. Liao7, D. Pallin7, D. Paredes Hernandez7, F. Podlyski7, C. Santoni7, F. Vazeille7, S. Aoun8, C. P. Bee8, C. Bertella8, N. Bousson8, J. C. Clémens8, Y. Coadou8, F. Djama8, F. Etienne8, L. Feligioni8, D. Hoffmann8, F. Hubaut8, E. B. F. G. Knoops8, E. Le Guirriec8, B. Li8, J. Maurer8, E. Monnier8, J. Odier8, P. Pralavorio8, A. Rozanov8, M. Talby8, N. Tannoury8, S. Tisserant8, J. Toth8, F. Touchard8, L. Vacavant8 |
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| Laboratoire : |
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| équipe(s) de recherche : |
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APC - Neutrinos |
| Résumé : |
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A search for diphoton events with large missing transverse momentum has been performed using proton-proton collision data at sqrt(s) = 7 TeV recorded with the ATLAS detector, corresponding to an integrated luminosity of 4.8 fb^-1. No excess of events was observed above the Standard Model prediction and model-dependent 95% confidence level exclusion limits are set. In the context of a generalised model of gauge-mediated supersymmetry breaking with a bino-like lightest neutralino of mass above 50 GeV, gluinos (squarks) below 1.07 TeV (0.87 TeV) are excluded, while a breaking scale Lambda below 196 TeV is excluded for a minimal model of gauge-mediated supersymmetry breaking. For a specific model with one universal extra dimension, compactification scales 1/R < 1.40 TeV are excluded. These limits provide the most stringent tests of these models to date. |
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| Collaboration/Projet : |
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ATLAS |
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| Type de publication : |
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Articles dans des revues avec comité de lecture |
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Date de publication ou d'écriture : |
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2012 |
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| Nom du périodique : |
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| Physics Letters B (Phys. Lett. B) |
| Publisher |
Elsevier |
| ISSN |
0370-2693 |
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| Volume : |
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718 |
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| Page/Article : |
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411-430 |
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| Identifiant local : |
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LPSC12258 |
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| Commentaire : |
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See paper for full list of authors - 10 pages plus author list (23 pages total), 9 figures, 4 tables, submitted to Physics Letters B |
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