Planck 2013 results
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Table 8

Numerical reconstruction of potential parameters, compared to results with the slow-roll approximation, when tensors and running are included (Planck+WP 95% CL, with k = 0.05 Mpc-1).

From V(φ) From
n 2 3 4 slow-roll

ϵV < 0.0078 < 0.015 < 0.021 < 0.015
η V
0 −0.7 −3.7 −0.9

Notes. The effective χ2 value is given relative to the model with a quadratic potential.

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