$D$-term inflation, cosmic strings, and consistency with cosmic microwave background measurement
High Energy Physics - Phenomenology
2009-11-10 v1 Astrophysics
General Relativity and Quantum Cosmology
High Energy Physics - Theory
Abstract
Standard D-term inflation is studied in the framework of supergravity. D-term inflation produces cosmic strings, however it can still be compatible with CMB measurements without invoking any new physics. The cosmic strings contribution to the CMB data is not constant, nor dominant, contrary to some previous results. Using current CMB measurements, the free parameters (gauge and superpotential couplings, as well as the Fayet-Iliopoulos term) of D-term inflation are constrained.
Cite
@article{arxiv.hep-ph/0412143,
title = {$D$-term inflation, cosmic strings, and consistency with cosmic microwave background measurement},
author = {Jonathan Rocher and Mairi Sakellariadou},
journal= {arXiv preprint arXiv:hep-ph/0412143},
year = {2009}
}
Comments
1 Latex file and 3 figures. accepted for publication in Physical Review Letters