CMB targets after the latest Planck data release
Abstract
We show that a combination of the simplest -attractors and KKLTI models related to Dp-brane inflation covers most of the area in the (, ) space favored by Planck 2018. For -attractor models, there are discrete targets , predicting 7 different values of in the range . In the small limit, -attractors and Dp-brane inflation models describe vertical -stripes in the (, ) space, with , . A phenomenological description of these models and their generalizations can be achieved in the context of pole inflation. Most of the area in the (, ) space favored by Planck 2018 can be covered models with and . Future precision data on may help to discriminate between these models even if the precision of the measurement of is insufficient for the discovery of gravitational waves produced during inflation.
Keywords
Cite
@article{arxiv.1909.04687,
title = {CMB targets after the latest Planck data release},
author = {Renata Kallosh and Andrei Linde},
journal= {arXiv preprint arXiv:1909.04687},
year = {2021}
}
Comments
20 pages, 11 figures. few typos corrected