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Measurements of Higgs boson production cross-sections in the H → τ+τ− decay channel in pp collisions at $$\sqrt{s}$$ = 13 TeV with the ATLAS detector
A bstract Measurements of the production cross-sections of the Standard Model (SM) Higgs boson ( H ) decaying into a pair of τ -leptons are presented. The measurements use data collected with the ATLAS detector from pp collisions produced at the Large Hadron Collider at a centre-of-mass energy of $$\sqrt{s}$$ s = 13 TeV, corresponding to an integrated luminosity of 139 fb − 1 . Leptonic ( τ → ℓν ℓ ν τ ) and hadronic ( τ → hadrons ν τ ) decays of the τ -lepton are considered. All measurements account for the branching ratio of H → ττ and are performed with a requirement |y H | < 2 . 5, where y H is the true Higgs boson rapidity. The cross-section of the pp → H → ττ process is measured to be 2 . 94 ± $$0.21{\left(\mathrm{stat}\right)}_{-0.32}^{+0.37}$$ 0.21 stat − 0.32 + 0.37 (syst) pb, in agreement with the SM prediction of 3 . 17 ± 0 . 09 pb. Inclusive cross-sections are determined separately for the four dominant production modes: 2 . 65 ± $$0.41{\left(\mathrm{stat}\right)}_{-0.67}^{+0.91}$$ 0.41 stat − 0.67 + 0.91 (syst) pb for gluon-gluon fusion, 0 . more »
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