Planck 2018 results
Open Access

Table 8.

Numerical reconstruction of the potential parameters beyond any slow-roll approximation, when the potential is Taylor-expanded to nth order, trusted until the end of inflation, and using Planck high- TT,TE,EE+lowE+lensing+BK15.

n 2 3 4
1012V3 ...
1012V4 ... ...

ns 0.963
r0.002 0.136


Notes. We also show the corresponding bounds on some related parameters (here ns, dns/dlnk, and r0.002 are derived from the numerically computed primordial spectra). All error bars are at the 68% CL and all upper bounds at the 95% CL. The effective χ2 value of model n is given relative to model n − 1.

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