Abstract (data abstract)

Measurements of the production cross-sections of the Standard Model (SM) Higgs boson ($H$) decaying into a pair of $\tau$-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 $\sqrt{s}$=13TeV, corresponding to an integrated luminosity of 139 fb$^{-1}$. Leptonic ($\tau\rightarrow l \nu_{l}\nu_{\tau}$) and hadronic ($\tau\rightarrow$ hadrons $\nu_{\tau}$ ) decays of the $\tau$-lepton are considered. All measurements account for the branching ratio of $H\rightarrow\tau\tau$ 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$\rightarrow H\rightarrow \tau\tau $ process is measured to be $2.94 \pm 0.21$ (stat) $^{+0.37}_{-0.32}$ (syst) pb, in agreement with the SM predictions $ 3.17 \pm 0.09$ pb. Inclusive cross-sections are determined separately for the four dominant production mode, $2.65 \pm 0.41$ (stat) $^{+0.91}_{-0.67}$ (syst) pb for gluon-gluon fusion, $ 0.197 \pm 0.028 $ (stat) $^{+0.032}_{-0.026}$ (syst) pb for vector-boson fusion, $ 0.115 \pm 0.058 $ (stat) $^{+0.042}_{-0.040} $ (syst) pb for vector-boson associated production and $ 0.033 \pm 0.031 $ (stat) $^{+0.022}_{-0.017}$ (syst) pb for top-quark pair associated production. Measurements in exclusive regions of the phase space, using the simplified template cross-section framework, are also performed. All results are in agreement with the SM predictions.

Table 1

Data from Table 11

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Observed yields in the boost_0_1J signal region category of the hh channel.
Table 2

Data from Table 11

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Observed yields in the boost_0_ge2J signal region category of the hh channel.
Table 3

Data from Table 11

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Observed yields in the boost_1_1J signal region category of the hh channel.
Table 4

Data from Table 11

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Observed yields in the boost_1_ge2J signal region category of the hh channel.
Table 5

Data from Table 11

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Observed yields in the boost_2 signal region category of the hh channel.
Table 6

Data from Table 11

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Observed yields in the boost_3 signal region category of the hh channel.
Table 7

Data from Table 8

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Observed yields in the ttH_0 signal region category of the hh channel.
Table 8

Data from Table 8

10.17182/hepdata.115994.v2/t8

Observed yields in the ttH_1 signal region category of the hh channel.
Table 9

Data from Table 8

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Observed yields in the VH_0 signal region category of the hh channel.
Table 10

Data from Table 8

10.17182/hepdata.115994.v2/t10

Observed yields in the VH_1 signal region category of the hh channel.
Table 11

Data from Table 8

10.17182/hepdata.115994.v2/t11

Observed yields in the VBF_0 signal region category of the hh channel.
Table 12

Data from Table 8

10.17182/hepdata.115994.v2/t12

Observed yields in the VBF_1 signal region category of the hh channel.
Table 13

Data from Table 12

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Observed yields in the boost_0_1J signal region category of the lh channel.
Table 14

Data from Table 12

10.17182/hepdata.115994.v2/t14

Observed yields in the boost_0_ge2J signal region category of the lh channel.
Table 15

Data from Table 12

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Observed yields in the boost_1_1J signal region category of the lh channel.
Table 16

Data from Table 12

10.17182/hepdata.115994.v2/t16

Observed yields in the boost_1_ge2J signal region category of the lh channel.
Table 17

Data from Table 12

10.17182/hepdata.115994.v2/t17

Observed yields in the boost_2 signal region category of the lh channel.
Table 18

Data from Table 12

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Observed yields in the boost_3 signal region category of the lh channel.
Table 19

Data from Table 9

10.17182/hepdata.115994.v2/t19

Observed yields in the VH_0 signal region category of the lh channel.
Table 20

Data from Table 9

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Observed yields in the VH_1 signal region category of the lh channel.
Table 21

Data from Table 9

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Observed yields in the VBF_0 signal region category of the lh channel.
Table 22

Data from Table 9

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Observed yields in the VBF_1 signal region category of the lh channel.
Table 23

Data from Table 13

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Observed yields in the boost_0_1J signal region category of the ll channel.
Table 24

Data from Table 13

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Observed yields in the boost_0_ge2J signal region category of the ll channel.
Table 25

Data from Table 13

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Observed yields in the boost_1_1J signal region category of the ll channel.
Table 26

Data from Table 13

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Observed yields in the boost_1_ge2J signal region category of the ll channel.
Table 27

Data from Table 13

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Observed yields in the boost_2 signal region category of the ll channel.
Table 28

Data from Table 13

10.17182/hepdata.115994.v2/t28

Observed yields in the boost_3 signal region category of the ll channel.
Table 29

Data from Table 10

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Observed yields in the VH_0 signal region category of the ll channel.
Table 30

Data from Table 10

10.17182/hepdata.115994.v2/t30

Observed yields in the VH_1 signal region category of the ll channel.
Table 31

Data from Table 10

10.17182/hepdata.115994.v2/t31

Observed yields in the VBF_0 signal region category of the ll channel.
Table 32

Data from Table 10

10.17182/hepdata.115994.v2/t32

Observed yields in the VBF_1 signal region category of the ll channel.
Table 33

Data from Figure 13a

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Best-fit values and uncertainties for the pp $\rightarrow H\rightarrow\tau\tau$ cross-section measurement and the measurement in the four dominant production modes....
Table 34

Data from Figure 13b

10.17182/hepdata.115994.v2/t34

The measured correlations between each parameter of interest in the measurement of the cross-sections per production mode
Table 35

Data from Figure 14a

10.17182/hepdata.115994.v2/t35

Best-fit values and uncertainties for the $H\rightarrow\tau\tau$ cross-sections, in the reduced stage 1.2 STXS scheme. The EW production mode includes...
Table 36

Data from Figure 14b

10.17182/hepdata.115994.v2/t36

The measured correlations between each pair of parameters of interest in the STXS measurement. The asterisk symbol (*) indicates that...

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