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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 root s=7 TeV with the ATLAS detector
Stockholm University, Faculty of Science, Department of Physics. Stockholm University, Faculty of Science, The Oskar Klein Centre for Cosmo Particle Physics (OKC). (Elementarpartikelfysik)
Stockholm University, Faculty of Science, Department of Physics. Stockholm University, Faculty of Science, The Oskar Klein Centre for Cosmo Particle Physics (OKC).
Stockholm University, Faculty of Science, Department of Physics. (Systemfysik)
Stockholm University, Faculty of Science, Department of Physics. Stockholm University, Faculty of Science, The Oskar Klein Centre for Cosmo Particle Physics (OKC). (Elementarpartikelfysik)
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2013 (English)In: Journal of High Energy Physics (JHEP), ISSN 1126-6708, E-ISSN 1029-8479, no 1, 131- p.Article in journal (Refereed) Published
Abstract [en]

A search for direct chargino production in anomaly-mediated supersymmetry breaking scenarios is performed in p p collisions at root 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.

Place, publisher, year, edition, pages
2013. no 1, 131- p.
Keyword [en]
Hadron-Hadron Scattering
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:su:diva-89249DOI: 10.1007/JHEP01(2013)131ISI: 000315583600050OAI: oai:DiVA.org:su-89249DiVA: diva2:616796
Funder
Swedish Research CouncilKnut and Alice Wallenberg Foundation
Note

AuthorCount:2911;

Available from: 2013-04-18 Created: 2013-04-17 Last updated: 2017-12-06Bibliographically approved

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Åsman, BarbroBendtz, KatarinaBohm, ChristianClément, ChristopheEriksson, DanielGellerstedt, KarlHellman, StenHolmgren, Sven-OlofJon-And, KerstinKhandanyan, HovhannesKim, HyeonKlimek, PawelLundberg, JohanLundberg, OlofMilstead, David A.Moa, TorbjörnOhm, Christian C.Papadelis, ArasSellden, BjörnSilverstein, Samuel B.Sjölin, JörgenStrandberg, SaraTylmad, MajaYang, Zhaoyu
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Department of PhysicsThe Oskar Klein Centre for Cosmo Particle Physics (OKC)
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