Abstract (data abstract)

CERN-LHC. Combined ATLAS and CMS measurements of the Higgs boson production and decay rates, as well as constraints on its couplings to vector bosons and fermions, are presented. The combination is based on the analysis of five production processes, namely gluon fusion, vector boson fusion, and associated production with a $W$ or a $Z$ boson or a pair of top quarks, and of the six decay modes $H \to ZZ, WW$, $\gamma\gamma, \tau\tau, bb$, and $\mu\mu$. All results are reported assuming a value of 125.09 GeV for the Higgs boson mass, the result of the combined measurement by the ATLAS and CMS experiments. The analysis uses the CERN LHC proton-proton collision data recorded by the ATLAS and CMS experiments in 2011 and 2012, corresponding to integrated luminosities per experiment of approximately 5 fb$^{-1}$ at $\sqrt{s}$=7 TeV and 20 fb$^{-1}$ at $\sqrt{s}$ = 8 TeV. The Higgs boson production and decay rates measured by the two experiments are combined within the context of three generic parameterisations: two based on cross sections and branching fractions, and one on ratios of coupling modifiers. Several interpretations of the measurements with more model-dependent parameterisations are also given. The combined signal yield relative to the Standard Model prediction is measured to be 1.09 $\pm$ 0.11. The combined measurements lead to observed significances for the vector boson fusion production process and for the $H \to \tau\tau$ decay of 5.4 and 5.5 standard deviations, respectively. The data are consistent with the Standard Model predictions for all parameterisations considered.

Table 1

Data from Tab 8

10.17182/hepdata.78403.v1/t1

Best fit values of $\sigma_i \cdot \mathrm{B}^f$ for each specific channel $i \to H\to f$, as obtained from the generic...
Table 2

Data from Tab 8, Fig 7

10.17182/hepdata.78403.v1/t2

Best fit values of $\sigma_i \cdot \mathrm{B}^f$ relative to their SM prediction for each specific channel $i \to H\to f$,...
Table 3

Data from Tab 9, Tab 20

10.17182/hepdata.78403.v1/t3

Best fit values of $\sigma(gg\to H\to ZZ)$, $\sigma_i/\sigma_{gg\mathrm{F}}$, and $\mathrm{B}^f/\mathrm{B}^{ZZ}$ from the combined analysis of the $\sqrt{s}$=7 and 8 TeV...
Table 4

Data from Fig 8

10.17182/hepdata.78403.v1/t4

Best fit values of $\sigma(gg\to H\to ZZ)$, $\sigma_i/\sigma_{gg\mathrm{F}}$, and $\mathrm{B}^f/\mathrm{B}^{ZZ}$ relative to their SM prediction from the combined analysis of...
Table 5

Data from Tab 21

10.17182/hepdata.78403.v1/t5

Best fit values of $\sigma(gg\to H\to WW)$, $\sigma_i/\sigma_{gg\mathrm{F}}$, and $\mathrm{B}^f/\mathrm{B}^{WW}$ from the combined analysis of the $\sqrt{s}$=7 and 8 TeV...
Table 6

Data from Fig 30

10.17182/hepdata.78403.v1/t6

Best fit values of $\sigma(gg\to H\to WW)$, $\sigma_i/\sigma_{gg\mathrm{F}}$, and $\mathrm{B}^f/\mathrm{B}^{WW}$ relative to their SM prediction from the combined analysis of...
Table 7

Data from Fig 10, Tab 10, Tab 22

10.17182/hepdata.78403.v1/t7

Best fit values of $\kappa_{gZ}= \kappa_{g}\cdot\kappa_{Z} / \kappa_{H}$ and of the ratios of coupling modifiers, as defined in the most...
Table 8

Data from Fig12, Tab 11

10.17182/hepdata.78403.v1/t8

Measured global signal strength $\mu$ and its total uncertainty, together with the breakdown of the uncertainty into its four components...
Table 9

Data from Fig 12, Tab 12

10.17182/hepdata.78403.v1/t9

Measured signal strengths $\mu$ and their total uncertainties for different Higgs boson production processes. The results are shown for the...
Table 10

Data from Fig 13, Tab 13

10.17182/hepdata.78403.v1/t10

Measured signal strengths $\mu$ and their total uncertainties for different Higgs boson decay channels. The results are shown for the...
Table 11

Data from Tab 15a

10.17182/hepdata.78403.v1/t11

Results of the ten-parameter fit of $\mu_F^f = \mu_{gg\mathrm{F}+ttH}^f$ and $\mu_V^f = \mu_{\mathrm{VBF}+VH}^f$ for each of the five decay channels....
Table 12

Data from Tab 15b

10.17182/hepdata.78403.v1/t12

Results of the six-parameter fit of the global ratio $\mu_V/\mu_F = \mu_{\mathrm{VBF}+VH}/\mu_{gg\mathrm{F}+ttH}$ together with $\mu_F^f$ for each of the five...
Table 13

Data from Fig 15a, Tab 17a

10.17182/hepdata.78403.v1/t13

Fit results allowing BSM loop couplings, assuming that $|\kappa_{V}| \le$ 1, where $\kappa_{V}$ denotes $\kappa_{Z}$ or $\kappa_{W}$, and that $\mathrm{B_{BSM}}...
Table 14

Data from Fig 15b, Tab 17b

10.17182/hepdata.78403.v1/t14

Fit results allowing BSM loop couplings, assuming that there are no additional BSM contributions to the Higgs boson width, i.e....
Table 15

Data from Fig 18, Tab 18

10.17182/hepdata.78403.v1/t15

Fit results for the parameterisation assuming the absence of BSM particles in the loops ($\mathrm{B_{BSM}}$=0). The results with their measured...
Table 16

Data from Fig 20, Tab 19a

10.17182/hepdata.78403.v1/t16

Summary of fit results for a parameterisation probing the ratios of coupling modifiers for up-type versus down-type fermions. The results...
Table 17

Data from Fig 22, Tab 19b

10.17182/hepdata.78403.v1/t17

Summary of fit results for a parameterisation probing the ratios of coupling modifiers for leptons versus quarks. The results for...
Table 18

Data from Fig 27

10.17182/hepdata.78403.v1/t18

Correlation matrix obtained from the fit combining the ATLAS and CMS data using the generic parameterisation with 23 parameters, $\sigma_i\cdot\mathrm{B}^f$...
Table 19

Data from Fig 28

10.17182/hepdata.78403.v1/t19

Correlation matrix obtained from the fit combining the ATLAS and CMS data using the generic parameterisation with nine parameters, $\sigma(gg\to...
Table 20

Data from Fig 29

10.17182/hepdata.78403.v1/t20

Correlation matrix obtained from the fit combining the ATLAS and CMS data using the generic parameterisation with seven parameters, $\kappa_{gZ}=\kappa_{g}\cdot\kappa_{Z}...
Table 21

Data from Fig 34

10.17182/hepdata.78403.v1/t21

Expected correlation matrix obtained from the fit combining ATLAS and CMS pre-fit Asimov data sets using the generic parameterisation with...
Table 22

Data from Fig 35

10.17182/hepdata.78403.v1/t22

Expected correlation matrix obtained from the fit combining ATLAS and CMS pre-fit Asimov data sets using the generic parameterisation with...
Table 23

Data from Fig 36

10.17182/hepdata.78403.v1/t23

Expected correlation matrix obtained from the fit combining ATLAS and CMS pre-fit Asimov data sets using the generic parameterisation with...
Table 24

Data from Fig 17

10.17182/hepdata.78403.v1/t24

ATLAS+CMS combined best-fit and 68% and 95% CL negative log-likelihood contours in the ($\kappa_{g}$,$\kappa_{\gamma}$) plane.
Table 25

Data from Fig 17

10.17182/hepdata.78403.v1/t25

ATLAS best-fit and 68% and 95% CL negative log-likelihood contours in the ($\kappa_{g}$,$\kappa_{\gamma}$) plane.
Table 26

Data from Fig 17

10.17182/hepdata.78403.v1/t26

CMS best-fit and 68% and 95% CL negative log-likelihood contours in the ($\kappa_{g}$,$\kappa_{\gamma}$) plane.
Table 27

Data from Fig 24, Fig 26a, Fig 26b

10.17182/hepdata.78403.v1/t27

Best-fit and 68% and 95% CL negative log-likelihood contours in the ($\kappa_{F}$,$\kappa_{V}$) plane.
Table 28

Data from Fig 24

10.17182/hepdata.78403.v1/t28

Best-fit and 68% CL negative log-likelihood contour in the ($\kappa_{F}$,$\kappa_{V}$) plane for the $H\rightarrow\gamma\gamma$ channel.
Table 29

Data from Fig 24

10.17182/hepdata.78403.v1/t29

Best-fit and 68% CL negative log-likelihood contour in the ($\kappa_{F}$,$\kappa_{V}$) plane for the $H\rightarrow ZZ$ channel.
Table 30

Data from Fig 24

10.17182/hepdata.78403.v1/t30

Best-fit and 68% CL negative log-likelihood contour in the ($\kappa_{F}$,$\kappa_{V}$) plane for the $H\rightarrow WW$ channel.
Table 31

Data from Fig 24

10.17182/hepdata.78403.v1/t31

Best-fit and 68% CL negative log-likelihood contour in the ($\kappa_{F}$,$\kappa_{V}$) plane for the $H\rightarrow\tau\tau$ channel.
Table 32

Data from Fig 24

10.17182/hepdata.78403.v1/t32

Best-fit and 68% CL negative log-likelihood contour in the ($\kappa_{F}$,$\kappa_{V}$) plane for the $H\rightarrow bb$ channel.
Table 33

Data from Fig 26a

10.17182/hepdata.78403.v1/t33

ATLAS best-fit and 68% and 95% CL negative log-likelihood contours in the ($\kappa_{F}$,$\kappa_{V}$) plane.
Table 34

Data from Fig 26a

10.17182/hepdata.78403.v1/t34

CMS best-fit and 68% and 95% CL negative log-likelihood contours in the ($\kappa_{F}$,$\kappa_{V}$) plane.
Table 35

Data from Fig 26b

10.17182/hepdata.78403.v1/t35

Best-fit and 68% CL negative log-likelihood contour in the ($\kappa_{F}$,$\kappa_{V}$) plane for the $H\rightarrow\gamma\gamma$ channel, assuming $\kappa_{F}>0$.
Table 36

Data from Fig 26b

10.17182/hepdata.78403.v1/t36

Best-fit and 68% CL negative log-likelihood contour in the ($\kappa_{F}$,$\kappa_{V}$) plane for the $H\rightarrow ZZ$ channel, assuming $\kappa_{F}>0$.
Table 37

Data from Fig 26b

10.17182/hepdata.78403.v1/t37

Best-fit and 68% CL negative log-likelihood contour in the ($\kappa_{F}$,$\kappa_{V}$) plane for the $H\rightarrow WW$ channel, assuming $\kappa_{F}>0$.
Table 38

Data from Fig 26b

10.17182/hepdata.78403.v1/t38

Best-fit and 68% CL negative log-likelihood contour in the ($\kappa_{F}$,$\kappa_{V}$) plane for the $H\rightarrow\tau\tau$ channel, assuming $\kappa_{F}>0$.
Table 39

Data from Fig 26b

10.17182/hepdata.78403.v1/t39

Best-fit and 68% CL negative log-likelihood contour in the ($\kappa_{F}$,$\kappa_{V}$) plane for the $H\rightarrow bb$ channel, assuming $\kappa_{F}>0$.
Table 40

Data from Fig 14, Fig 41

10.17182/hepdata.78403.v1/t40

Best-fit and 68% and 95% CL negative log-likelihood contours in the ($\mu^{f}_{gg\mathrm{F}+ttH}$,$\mu^{f}_{\mathrm{VBF}+VH}$) plane for the $H\rightarrow\gamma\gamma$ channel.
Table 41

Data from Fig 14, Fig 41

10.17182/hepdata.78403.v1/t41

Best-fit and 68% and 95% CL negative log-likelihood contours in the ($\mu^{f}_{gg\mathrm{F}+ttH}$,$\mu^{f}_{\mathrm{VBF}+VH}$) plane for the $H\rightarrow ZZ$ channel.
Table 42

Data from Fig 14, Fig 41

10.17182/hepdata.78403.v1/t42

Best-fit and 68% and 95% CL negative log-likelihood contours in the ($\mu^{f}_{gg\mathrm{F}+ttH}$,$\mu^{f}_{\mathrm{VBF}+VH}$) plane for the $H\rightarrow WW$ channel.
Table 43

Data from Fig 14, Fig 41

10.17182/hepdata.78403.v1/t43

Best-fit and 68% and 95% CL negative log-likelihood contours in the ($\mu^{f}_{gg\mathrm{F}+ttH}$,$\mu^{f}_{\mathrm{VBF}+VH}$) plane for the $H\rightarrow\tau\tau$ channel.
Table 44

Data from Fig 14, Fig 41

10.17182/hepdata.78403.v1/t44

Best-fit and 68% and 95% CL negative log-likelihood contours in the ($\mu^{f}_{gg\mathrm{F}+ttH}$,$\mu^{f}_{\mathrm{VBF}+VH}$) plane for the $H\rightarrow bb$ channel.

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