CMB anomalies and the effects of local features of the inflaton potential

Alexander Gallego Cadavid, Antonio Enea Romano, Stefano Gariazzo

Recent analysis of the WMAP and Planck data have shown the presence of a dip and a bump in the spectrum of primordial perturbations at the scales $k=0.002$ Mpc${}^{-1}$ and $k=0.00…