Search for the SM Higgs Boson in Di-τ Final States at CMS
Massachusetts Institute of Technology
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A search for the standard model Higgs boson decaying to tau pairs is performed using events recorded by the CMS experiment at the LHC in 2011 and 2012 at a center-of-mass energy of 7 and 8 TeV respectively. The dataset corresponds to an integrated luminosity of 17 fb 1, split in 4.9 fb 1 of data taken at 7 TeV center-of-mass energy and 12.1 fb1 at 8 TeV. The tau-pair invariant-mass spectrum is studied in five different final states, μτh + X, eτh + X, eμ + X, τhτh + X, and μμ + X. Upper limits with respect to the standard model prediction in the mass range of 110-145 GeV are determined. An observed (expected) 95% confidence level exclusion limit for mH = 125 GeV is found to be 1.63 (1.00) times the standard model cross section.
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