Loop Corrections to Standard Model fields in inflation

  • Xingang Chen
  • Yi Wang
  • Zhong-Zhi XianyuEmail author
Open Access
Regular Article - Theoretical Physics


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.


Cosmology of Theories beyond the SM Effective field theories 


Open Access

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© The Author(s) 2016

Authors and Affiliations

  1. 1.Institute for Theory and ComputationHarvard-Smithsonian Center for AstrophysicsCambridgeUSA
  2. 2.Department of PhysicsThe University of Texas at DallasRichardsonUSA
  3. 3.Department of PhysicsThe Hong Kong University of Science and TechnologyHong KongChina
  4. 4.Center of Mathematical Sciences and ApplicationsHarvard UniversityCambridgeUSA

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