Planck 2015 results
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Table 7

Marginalized mean values and 68% C.L. errors on the present day value of the function 2 [μ(z,k)−1] + [η(z,k)−1], which corresponds to the (approximate) maximum degeneracy line identified within the 2 dimensional posterior distributions.

Max. degeneracy Planck TT+lowP Planck TT+lowP Planck TT+lowP Planck TT+lowP Planck TT+lowP
+BSH +WL +BAO/RSD +WL+BAO/RSD

DE-related .... 1.03 ± 0.34 (3.0σ)
       + CMB lensing

Time-related ....

Notes. This function gives a quick idea of the maximum possible tension found for each data set combination in these classes of models, for the scale-independent case. The upper part of the table refers to the DE-related parametrisation, with and without CMB lensing, while the lower part refers to the time-related one (see Sect. 5.2.2). For convenience, we write explicitly in brackets for each case the tension in units of σ with respect to the standard ΛCDM zero value. The DE-related case is more in tension than the time-related parameterization, with a maximum tension that ranges between 2.1σ and 3σ, depending on the data sets. When CMB lensing is included, also the DE-related parameterization becomes compatible with ΛCDM, with a maximum possible “tension” of at most 1.7σ when WL and BAO/RSD are included.

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