Loop Corrections to Standard Model Fields in Inflation
High Energy Physics - Theory
2016-08-16 v2 Cosmology and Nongalactic Astrophysics
High Energy Physics - Phenomenology
Abstract
We calculate 1-loop corrections to the Schwinger-Keldysh propagators of Standard-Model-like fields of spin-0, 1/2, and 1, with all renormalizable interactions during inflation. We pay special attention to the late-time divergences of loop corrections, and show that the divergences can be resummed into finite results in the late-time limit using dynamical renormalization group method. This is our first step toward studying both the standard model and new physics in the primordial universe.
Keywords
Cite
@article{arxiv.1604.07841,
title = {Loop Corrections to Standard Model Fields in Inflation},
author = {Xingang Chen and Yi Wang and Zhong-Zhi Xianyu},
journal= {arXiv preprint arXiv:1604.07841},
year = {2016}
}
Comments
34 pages. Typos corrected. Discussions in Sec. 5 expanded. JHEP published version