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    Search for Pair Production of Third-Generation Leptoquarks and Top Squarks in pp Collisions at s√=7  TeV

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    Baringer_2-20-2013_81801.pdf (739.3Kb)
    Issue Date
    2013-02-20
    Author
    Baringer, Philip S.
    Bean, Alice
    Benelli, Gabriele
    Kenny, R. P., III
    Murray, Michael J.
    Sanders, Stephen J.
    Stringer, Robert W.
    Tinti, Gemma
    Wood, Jeffrey Scott
    Chatrchyan, S.
    Khachatryan, V.
    Sirunyan, A. M.
    Tumasyan, A.
    Adam, W.
    Aguilo, E.
    Bergauer, T.
    Dragicevic, M.
    Erö, J.
    Publisher
    American Physical Society
    Type
    Article
    Article Version
    Scholarly/refereed, publisher version
    Metadata
    Show full item record
    Abstract
    Results are presented from a search for the pair production of third-generation scalar and vector leptoquarks, as well as for top squarks in R-parity-violating supersymmetric models. In either scenario, the new, heavy particle decays into a τ lepton and a b quark. The search is based on a data sample of pp collisions at s√=7  TeV, which is collected by the CMS detector at the LHC and corresponds to an integrated luminosity of 4.8  fb(−1). The number of observed events is found to be in agreement with the standard model prediction, and exclusion limits on mass parameters are obtained at the 95% confidence level. Vector leptoquarks with masses below 760 GeV are excluded and, if the branching fraction of the scalar leptoquark decay to a τ lepton and a b quark is assumed to be unity, third-generation scalar leptoquarks with masses below 525 GeV are ruled out. Top squarks with masses below 453 GeV are excluded for a typical benchmark scenario, and limits on the coupling between the top squark, τ lepton, and b quark, λ′333 are obtained. These results are the most stringent for these scenarios to date.
    Description
    This is the publisher's version, also available electronically from http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.110.081801.
    URI
    http://hdl.handle.net/1808/15717
    DOI
    https://doi.org/10.1103/PhysRevLett.110.081801
    ISSN
    0031-9007
    Collections
    • Physics & Astronomy Scholarly Works [1713]
    Citation
    S. Chatrchyan et al. (CMS Collaboration). (2013). "Search for Pair Production of Third-Generation Leptoquarks and Top Squarks in pp Collisions at s√=7  TeV." Physical Review Letters, 110(8):081801. http://dx.doi.org/10.1103/PhysRevLett.110.081801.

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    Contact KU ScholarWorks
    785-864-8983
    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    785-864-8983

    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    Image Credits
     

     

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