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    Search for pair production of excited top quarks in the lepton + jets final state

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    CMS_pair_production2014.pdf (594.5Kb)
    Issue Date
    2014-06
    Author
    CMS Collaboration
    Bean, Alice
    Publisher
    Springer Verlag
    Type
    Article
    Article Version
    Scholarly/refereed, publisher version
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    Abstract
    A search is performed for pair-produced spin-3/2 excited top quarks (t∗t¯∗), each decaying to a top quark and a gluon. The search uses data collected with the CMS detector from pp collisions at a center-of-mass energy of s√ = 8 TeV, selecting events that have a single isolated muon or electron, an imbalance in transverse momentum, and at least six jets, of which one must be compatible with originating from the fragmentation of a b quark. The data, corresponding to an integrated luminosity of 19.5 fb−1, show no significant excess over standard model predictions, and provide a lower limit of 803 GeV at 95% confidence on the mass of the spin-3/2 t* quark in an extension of the Randall-Sundrum model, assuming a 100% branching fraction of its decay into a top quark and a gluon. This is the first search for a spin-3/2 excited top quark performed at the LHC.
    Description
    This is the published version.
    URI
    http://hdl.handle.net/1808/19301
    DOI
    https://doi.org/10.1007/JHEP06(2014)125
    Collections
    • Physics & Astronomy Scholarly Works [1713]
    Citation
    The CMS collaboration. "Search for pair production of excited top quarks in the lepton + jets final state." Journal of High Energy Physics. June, 2014, v5n6. http://dx.doi.org/10.1007/JHEP06(2014)125

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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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