Modulus D-term Inflation
High Energy Physics - Phenomenology
2018-05-09 v1 Cosmology and Nongalactic Astrophysics
High Energy Physics - Theory
Abstract
We propose a new model of single-field D-term inflation in supergravity, where the inflation is driven by a single modulus field which transforms non-linearly under the U(1) gauge symmetry. One of the notable features of our modulus D-term inflation scenario is that the global U(1) remains unbroken in the vacuum and hence our model is not plagued by the cosmic string problem which can exclude most of the conventional D-term inflation models proposed so far due to the CMB observations.
Cite
@article{arxiv.1801.05982,
title = {Modulus D-term Inflation},
author = {Kenji Kadota and Tatsuo Kobayashi and Ikumi Saga and Keigo Sumita},
journal= {arXiv preprint arXiv:1801.05982},
year = {2018}
}
Comments
15 pages, 5 figures