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    Search for a Higgs boson decaying into a Z and a photon in pp collisions at √s=7 and 8 TeV

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    Author
    CMS Collaboration; Adair, A.; Akgun, B.; Ecklund, K.M.; Geurts, F.J.M.; More... Li, W.; Padley,B.P.; Redjimi, R.; Roberts, J.; Zabel, J. Less...
    Date
    2013
    Abstract
    A search for a Higgs boson decaying into a Z boson and a photon is described. The analysis is performed using proton–proton collision datasets recorded by the CMS detector at the LHC. Events were collected at center-of-mass energies of 7 TeV and 8 TeV, corresponding to integrated luminosities of 5.0 fb−1 and 19.6 fb−1, respectively. The selected events are required to have opposite-sign electron or muon pairs. No excess above standard model predictions has been found in the 120–160 GeV mass range and the first limits on the Higgs boson production cross section times the H→ZγH→Zγ branching fraction at the LHC have been derived. The observed at 95% confidence level limits are between about 4 and 25 times the standard model cross section times the branching fraction. For a standard model Higgs boson mass of 125 GeV the expected limit at the 95% confidence level is 10 and the observed limit is 9.5. Models predicting the Higgs boson production cross section times the H→Zγ branching fraction to be larger than one order of magnitude of the standard model prediction are excluded for most of the 125–157 GeV mass range.
    Citation
    CMS Collaboration, Adair, A., Akgun, B., et al.. "Search for a Higgs boson decaying into a Z and a photon in pp collisions at √s=7 and 8 TeV." Physics Letters B, 726, no. 4-5 (2013) Elsevier: 587-609. http://dx.doi.org/10.1016/j.physletb.2013.09.057.
    Published Version
    http://dx.doi.org/10.1016/j.physletb.2013.09.057
    Keyword
    CMS; physics; Higgs
    Type
    Journal article
    Publisher
    Elsevier
    Citable link to this page
    https://hdl.handle.net/1911/80948
    Rights
    This article is published Open Access at sciencedirect.com. It is distributed under the terms of the Creative Commons Attribution License 3.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are credited.
    Link to License
    http://creativecommons.org/licenses/by/3.0/
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    • Faculty Publications [5245]
    • Physics and Astronomy Publications [1836]

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    Managed by the Digital Scholarship Services at Fondren Library, Rice University
    Physical Address: 6100 Main Street, Houston, Texas 77005
    Mailing Address: MS-44, P.O.BOX 1892, Houston, Texas 77251-1892
    Site Map