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Search for displaced muonic lepton jets from light Higgs boson decay in proton-proton 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).
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.
Stockholm University, Faculty of Science, Department of Physics. Stockholm University, Faculty of Science, The Oskar Klein Centre for Cosmo Particle Physics (OKC).
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2013 (English)In: Physics Letters B, ISSN 0370-2693, E-ISSN 1873-2445, Vol. 721, no 1-3, 32-50 p.Article in journal (Refereed) Published
Abstract [en]

A search is performed for collimated muon pairs displaced from the primary vertex produced in the decay of long-lived neutral particles in proton-proton collisions at root s = 7 TeV centre-of-mass energy, with the ATLAS detector at the LHC. In a 1.9 fb(-1) event sample collected during 2011, the observed data are consistent with the Standard Model background expectations. Limits on the product of the production cross section and the branching ratio of a Higgs boson decaying to hidden-sector neutral long-lived particles are derived as a function of the particles' mean lifetime.

Place, publisher, year, edition, pages
2013. Vol. 721, no 1-3, 32-50 p.
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Physical Sciences
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URN: urn:nbn:se:su:diva-90372DOI: 10.1016/j.physletb.2013.02.058ISI: 000317326100005OAI: oai:DiVA.org:su-90372DiVA: diva2:627706
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AuthorCount:2903;

Available from: 2013-06-12 Created: 2013-06-03 Last updated: 2017-12-06Bibliographically approved

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Åsman, BarbroBendtz, KatarinaBohm, ChristianClément, ChristopheEriksson, DanielGellerstedt, KarlHellman, StenHolmgren, Sven-OlofJohansen, MarianneJohansson, K. ErikJon-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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Physics Letters B
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