Thermal loop effects on largescale curvature perturbation in the Higgs inflation
Abstract
It is known that the Higgs potential in the Standard Model can drive a successful inflation as long as the Higgs field couples nonminimally to gravity. It is then inevitable to take into account the loop corrections of the Standard Model particles to the Higgs potential in the Higgs inflation. In this paper, we discuss the oneloop corrections at finite temperature to the curvature perturbation generated during the Higgs inflation. We find that the thermal loop effects can suppress the power of the curvature perturbation at large scales, thus resulting in a low quadrupole of the temperature anisotropy in the cosmic microwave background.
 Publication:

Journal of High Energy Physics
 Pub Date:
 April 2020
 DOI:
 10.1007/JHEP04(2020)163
 arXiv:
 arXiv:1907.04857
 Bibcode:
 2020JHEP...04..163C
 Keywords:

 Cosmology of Theories beyond the SM;
 Higgs Physics;
 High Energy Physics  Phenomenology;
 Astrophysics  Cosmology and Nongalactic Astrophysics;
 General Relativity and Quantum Cosmology
 EPrint:
 24 pages, 3 figures, 2 tables, expanded discussion on RG evolution and thermal equilibrium condition, references added, matches published version