Loop Corrections to Standard Model Fields in Inflation
arXiv:1604.07841 · doi:10.1007/JHEP08(2016)051
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.
34 pages. Typos corrected. Discussions in Sec. 5 expanded. JHEP published version
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