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    Search for the standard model Higgs boson in ℓν+jets final states in 9.7  fb(−1) of pp-bar collisions with the D0 detector

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    Issue Date
    2013-09-17
    Author
    Baringer, Philip S.
    Bean, Alice
    Chen, G.
    Clutter, Justace Randall
    Sekaric, Jadranka
    Wilson, Graham Wallace
    Abazov, V. M.
    Abbinante, A.
    Abbott, B.
    Acharya, B. S.
    Adams, M.
    Adams, T.
    Alexeev, G. D.
    Alkhazov, G.
    Publisher
    American Physical Society
    Type
    Article
    Article Version
    Scholarly/refereed, publisher version
    Metadata
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    Abstract
    We present, in detail, a search for the standard model Higgs boson, H, in final states with a charged lepton (electron or muon), missing energy, and two or more jets in data corresponding to 9.7  fb(−1) of integrated luminosity collected at a center-of-mass energy of s√=1.96  TeV with the D0 detector at the Fermilab Tevatron pp-bar Collider. The search uses b-jet identification to categorize events for improved signal versus background separation and is sensitive to associated production of the H with a W boson, WH→ℓνbb-bar; gluon fusion with the Higgs decaying to W-boson pairs, H→WW→ℓνjj; and associated production with a vector boson where the Higgs decays to W-boson pairs, VH→VWW→ℓνjjjj production (where V=W or Z). We observe good agreement between data and expected background. We test our method by measuring WZ and ZZ production with Z→bb-bar and find production rates consistent with the standard model prediction. For a Higgs boson mass of 125 GeV, we set a 95% C.L. upper limit on the production of a standard model Higgs boson of 5.8×σSM, where σSM is the standard model Higgs boson production cross section, while the expected limit is 4.7×σ(SM). We also interpret the data considering models with fourth generation fermions, or a fermiophobic Higgs boson.
    Description
    This is the publisher's version, also available electronically from http://journals.aps.org/prd/abstract/10.1103/PhysRevD.88.052008.
    URI
    http://hdl.handle.net/1808/15702
    DOI
    https://doi.org/10.1103/PhysRevD.88.052008
    ISSN
    0556-2821
    Collections
    • Physics & Astronomy Scholarly Works [1715]
    Citation
    V. M. Abazov et al. (D0 Collaboration). (2013). "Search for the standard model Higgs boson in ℓν+jets final states in 9.7  fb(−1) of pp-bar collisions with the D0 detector." Physical Review D, 88(5):052008. http://dx.doi.org/10.1103/PhysRevD.88.052008.

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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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