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dc.contributor.authorAaboud, M.
dc.contributor.authorRogan, Christopher
dc.contributor.authorATLAS Collaboration
dc.identifier.citationM. Aaboud et al., "Cross-section measurements of the Higgs boson decaying into a pair of τ-leptons in proton-proton collisions at √s = 13 TeV with the ATLAS detector", Phys. Rev. D 99, 072001, 10 April 2019, American Physical Society,
dc.descriptionThis work is licensed under a Creative Commons Attribution 4.0 International License.en_US
dc.description.abstractA measurement of production cross sections of the Higgs boson in proton-proton collisions is presented in the H→ττ decay channel. The analysis is performed using 36.1 fb−1 of data recorded by the ATLAS experiment at the Large Hadron Collider at a center-of-mass energy of √s=13 TeV. All combinations of leptonic (τ→ℓv¯v with ℓ=e, μ) and hadronic (τ→hadrons  v) τ decays are considered. The H→ττ signal over the expected background from other Standard Model processes is established with an observed (expected) significance of 4.4 (4.1) standard deviations. Combined with results obtained using data taken at 7 and 8 TeV center-of-mass energies, the observed (expected) significance amounts to 6.4 (5.4) standard deviations and constitutes an observation of H→ττ decays. Using the data taken at √s=13 TeV, the total cross section in the H→ττ decay channel is measured to be 3.77 + 0.60 − 0.59  (stat)  + 0.87 − 0.74 (syst) pb, for a Higgs boson of mass 125 GeV assuming the relative contributions of its production modes as predicted by the Standard Model. Total cross sections in the H→ττ decay channel are determined separately for vector-boson-fusion production and gluon-gluon-fusion production to be σ VBF H →ττ = 0.28 ± 0.09  (stat)  + 0.11 − 0.09 (syst) pb and σ g g F H → ττ = 3.1 ± 1.0  (stat)  + 1.6 − 1.3  (syst)  pb, respectively. Similarly, results of a fit are reported in the framework of simplified template cross sections. All measurements are in agreement with Standard Model expectations.en_US
dc.publisherAmerican Physical Societyen_US
dc.rights© 2019 CERN, for the ATLAS Collaboration.en_US
dc.titleCross-section measurements of the Higgs boson decaying into a pair of τ-leptons in proton-proton collisions at √s = 13 TeV with the ATLAS detectoren_US
kusw.kuauthorRogan, Christopher
kusw.kudepartmentPhysics and Astronomyen_US
kusw.oaversionScholarly/refereed, publisher versionen_US
kusw.oapolicyThis item meets KU Open Access policy criteria.en_US

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© 2019 CERN, for the ATLAS Collaboration.
Except where otherwise noted, this item's license is described as: © 2019 CERN, for the ATLAS Collaboration.