Search for supersymmetry using razor variables in events with b-tagged jets in pp collisions at √s=8  TeV

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dc.citation.firstpage52018en_US
dc.citation.issueNumber5en_US
dc.citation.journalTitlePhysical Review Den_US
dc.citation.volumeNumber91en_US
dc.contributor.authorAdair, A.en_US
dc.contributor.authorAkgun, B.en_US
dc.contributor.authorEcklund, K.M.en_US
dc.contributor.authorGeurts, F.J.M.en_US
dc.contributor.authorLi, W.en_US
dc.contributor.authorMichlin, B.en_US
dc.contributor.authorPadley, B.P.en_US
dc.contributor.authorRedjimi, R.en_US
dc.contributor.authorRoberts, J.en_US
dc.contributor.authorZabel, J.en_US
dc.date.accessioned2015-09-02T21:19:53Z
dc.date.available2015-09-02T21:19:53Z
dc.date.issued2015en_US
dc.description.abstractAn inclusive search for supersymmetry in events with at least one b-tagged jet is performed using proton-proton collision data collected by the CMS experiment in 2012 at a center-of-mass energy of 8 TeV. The data set size corresponds to an integrated luminosity of 19.3  fb−1. The two-dimensional distribution of the razor variables R2 and MR is studied in events with and without leptons. The data are found to be consistent with the expected background, which is modeled with an empirical function. Exclusion limits on supersymmetric particle masses at a 95% confidence level are derived in several simplified supersymmetric scenarios for several choices of the branching fractions. By combining the likelihoods of a search in events without leptons and a search that requires a single lepton (electron or muon), an improved bound on the top-squark mass is obtained. Assuming the lightest supersymmetric particle to be stable and weakly interacting, and to have a mass of 100 GeV, the branching-fraction-dependent (-independent) production of gluinos is excluded for gluino masses up to 1310 (1175) GeV. The corresponding limit for top-squark pair production is 730 (645) GeV.en_US
dc.identifier.citationAdair, A., Akgun, B., Ecklund, K.M., et al.. "Search for supersymmetry using razor variables in events with b-tagged jets in pp collisions at √s=8  TeV." <i>Physical Review D,</i> 91, no. 5 (2015) American Physical Society: 52018. http://dx.doi.org/10.1103/PhysRevD.91.052018.
dc.identifier.doihttp://dx.doi.org/10.1103/PhysRevD.91.052018en_US
dc.identifier.urihttps://hdl.handle.net/1911/81615
dc.language.isoengen_US
dc.publisherAmerican Physical Society
dc.rightsThis is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.en_US
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/en_US
dc.titleSearch for supersymmetry using razor variables in events with b-tagged jets in pp collisions at √s=8  TeVen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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