| Thème(s) : |
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Physique/Physique des Hautes Energies - Expérience
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| Titre : |
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Search for direct chargino production in anomaly-mediated supersymmetry breaking models based on a disappearing-track signature in pp collisions at sqrt(s)=7 TeV 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, D. Boumediene6, E. Busato6, D. Calvet6, S. Calvet6, R. Camacho Toro6, D. Cinca6, J. Donini6, R. Febbraro6, N. Ghodbane6, Ph. Gris6, C. Guicheney6, H. Liao6, D. Pallin6, D. Paredes Hernandez6, F. Podlyski6, C. Santoni6, F. Vazeille6, S. Aoun7, C. P. Bee7, C. Bertella7, N. Bousson7, J. C. Clémens7, Y. Coadou7, F. Djama7, F. Etienne7, L. Feligioni7, D. Hoffmann7, F. Hubaut7, E. B. F. G. Knoops7, E. Le Guirriec7, B. Li7, J. Maurer7, E. Monnier7, J. Odier7, P. Pralavorio7, A. Rozanov7, M. Talby7, N. Tannoury7, E. Tiouchichine7, S. Tisserant7, J. Toth7, F. Touchard7, L. Vacavant7, L. Aperio Bella8, B. Aubert8, N. Berger8, J. Colas8, M. Delmastro8, L. Di Ciaccio8, T.K.O. Doan8, S. Elles8, C. Goy8, T. Hryn'Ova8, S. Jézéquel8, M. Kataoka8, J. Labbe8, R. Lafaye8, J. Leveque8, V.P. Lombardo8, N. Massol8, P. Perrodo8, E. Petit8, H. Przysiezniak8, E. Richter-Was8, G. Sauvage8, E. Sauvan8, M. Schwoerer8, T. Todorov8, D. Tsionou8, I. Wingerter-Seez8, R. Zitoun8 |
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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 direct chargino production in anomaly-mediated supersymmetry breaking scenarios is performed in pp collisions at sqrt(s) = 7 TeV using 4.7 fb^-1 of data collected with the ATLAS experiment at the LHC. In these models, the lightest chargino is predicted to have a lifetime long enough to be detected in the tracking detectors of collider experiments. This analysis explores such models by searching for chargino decays that result in tracks with few associated hits in the outer region of the tracking system. The transverse-momentum spectrum of candidate tracks is found to be consistent with the expectation from the Standard Model background processes and constraints on chargino properties are obtained. |
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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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2013 |
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| Nom du périodique : |
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| Journal of High Energy Physics |
| Publisher |
Institute of Physics (IOP) |
| ISSN |
1126-6708 (eISSN : 1029-8479) |
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| Volume : |
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1 |
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| Page/Article : |
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131 |
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| Identifiant local : |
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LPSC12288 |
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| Commentaire : |
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See paper for full list of authors - 18 pages plus author list (39 pages total), 7 figures, 2 tables, submitted to JHEP |
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