@Article{Gariazzo_etal2017, author="Gariazzo, S. and Mena, O. and Miralles, V. and Ramirez, H. and Boubekeur, L.", title="Running of featureful primordial power spectra", journal="Physical Review D", year="2017", publisher="Amer Physical Soc", volume="95", number="12", pages="123534--7pp", abstract="Current measurements of the temperature and polarization anisotropy power spectra of the cosmic microwave background (CMB) seem to indicate that the naive expectation for the slow-roll hierarchy within the most simple inflationary paradigm may not be respected in nature. We show that a primordial power spectrum with localized features could in principle give rise to the observed slow-roll anarchy when fitted to a featureless power spectrum. From a model comparison perspective, and assuming that nature has chosen a featureless primordial power spectrum, we find that, while with mock Planck data there is only weak evidence against a model with localized features, upcoming CMB missions may provide compelling evidence against such a nonstandard primordial power spectrum. This evidence could be reinforced if a featureless primordial power spectrum is independently confirmed from bispectrum and/or galaxy clustering measurements.", optnote="WOS:000404475200004", optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=3186), last updated on Thu, 13 Jul 2017 15:02:16 +0000", issn="2470-0010", doi="10.1103/PhysRevD.95.123534", opturl="http://arxiv.org/abs/1701.08977", opturl="https://doi.org/10.1103/PhysRevD.95.123534", archivePrefix="arXiv", eprint="1701.08977", language="English" }