Testing an Inflation Model with Nonminimal Derivative Coupling in the Light of Planck 2015 Data

Figure 2

Tensor-to-scalar ratio versus the scalar spectral index for an inflationary model in which both inflaton and its derivative are nonminimally coupled to gravity, in the background of the Planck 2015 TT, TE, and EE + lowP data (a) and the amplitude of the orthogonal configuration of non-Gaussianity versus the equilateral configuration for an inflationary model in which both inflaton and its derivative are nonminimally coupled to gravity, in the background of Planck 2015 TTT, EEE, TTE, and EET data. (b). Figure is plotted with , , and various types of potential, for .

(a)

(b)