Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/88330
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dc.contributor.authorAad, G.en
dc.contributor.authorAbajyan, T.en
dc.contributor.authorAbbott, B.en
dc.contributor.authorAbdallah, J.en
dc.contributor.authorAbdel Khalek, S.en
dc.contributor.authorAbdinov, O.en
dc.contributor.authorAben, R.en
dc.contributor.authorAbi, B.en
dc.contributor.authorAbolins, M.en
dc.contributor.authorAbouZeid, O.S.en
dc.contributor.authorAbramowicz, H.en
dc.contributor.authorAbreu, H.en
dc.contributor.authorAbulaiti, Y.en
dc.contributor.authorAcharya, B.S.en
dc.contributor.authorAdamczyk, L.en
dc.contributor.authorAdams, D.L.en
dc.contributor.authorAddy, T.N.en
dc.contributor.authorAdelman, J.en
dc.contributor.authorAdye, T.en
dc.contributor.authorAefsky, S.en
dc.date.issued2013en
dc.identifier.citationPhysical Review D, 2013; 88(11):1-23en
dc.identifier.issn1550-2368en
dc.identifier.issn1550-2368en
dc.identifier.urihttp://hdl.handle.net/2440/88330-
dc.description.abstractA search is presented for direct chargino production based on a disappearing-track signature using 20.3fb -1 of proton-proton collisions at s root=8TeV collected with the ATLAS experiment at the LHC. In anomaly-mediated supersymmetry breaking (AMSB) models, the lightest chargino is nearly mass degenerate with the lightest neutralino and its lifetime is long enough to be detected in the tracking detectors by identifying decays that result in tracks with no associated hits in the outer region of the tracking system. Some models with supersymmetry also predict charginos with a significant lifetime. This analysis attains sensitivity for charginos with a lifetime between 0.1 and 10 ns, and significantly surpasses the reach of the LEP experiments. No significant excess above the background expectation is observed for candidate tracks with large transverse momentum, and constraints on chargino properties are obtained. In the AMSB scenarios, a chargino mass below 270 GeV is excluded at 95% confidence level.en
dc.description.statementofresponsibilityG. Aad ... P. Jackson ... N. Soni ... M. J. White ... et al.en
dc.language.isoenen
dc.publisherAmerican Physical Societyen
dc.rights© 2013 CERN, for the ATLAS Collaboration. Published by the American Physical Society under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.en
dc.titleSearch for charginos nearly mass degenerate with the lightest neutralino based on a disappearing-track signature in pp collisions at √(s)=8  TeV with the ATLAS detectoren
dc.title.alternativeSearch for charginos nearly mass degenerate with the lightest neutralino based on a disappearing-track signature in pp collisions at root(s)=8TeV with the ATLAS detectoren
dc.typeJournal articleen
dc.identifier.rmid0020137255en
dc.identifier.doi10.1103/PhysRevD.88.112006en
dc.identifier.pubid14960-
pubs.library.collectionChemistry and Physics publicationsen
pubs.library.teamDS05en
pubs.verification-statusVerifieden
pubs.publication-statusPublisheden
Appears in Collections:Chemistry and Physics publications

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