TY - JOUR
T1 - Running inflation in the Standard Model
AU - De Simone, Andrea
AU - Hertzberg, Mark P.
AU - Wilczek, Frank
N1 - Funding Information:
We would like to thank M. Amin, F. D'Eramo, A. Guth, and C. Santana for useful discussions, and A. Riotto for comments on the manuscript. We thank F.L. Bezrukov, A. Magnin, and M. Shaposhnikov for correspondence. The work of A.D.S. is supported in part by the INFN “Bruno Rossi” Fellowship. The work of A.D.S., M.P.H., and F.W. is supported in part by the US Department of Energy (DoE) under contract No. DE-FG02-05ER41360.
PY - 2009/7/6
Y1 - 2009/7/6
N2 - An interacting scalar field with largish coupling to curvature can support a distinctive inflationary universe scenario. Previously this has been discussed for the Standard Model Higgs field, treated classically or in a leading log approximation. Here we investigate the quantum theory using renormalization group methods. In this model the running of both the effective Planck mass and the couplings is important. The cosmological predictions are consistent with existing WMAP5 data, with 0.967 ≲ ns ≲ 0.98 (for Ne = 60) and negligible gravity waves. We find a relationship between the spectral index and the Higgs mass that is sharply varying for mh ∼ 120 - 135 GeV (depending on the top mass); in the future, that relationship could be tested against data from PLANCK and LHC. We also comment briefly on how similar dynamics might arise in more general settings, and discuss our assumptions from the effective field theory point of view.
AB - An interacting scalar field with largish coupling to curvature can support a distinctive inflationary universe scenario. Previously this has been discussed for the Standard Model Higgs field, treated classically or in a leading log approximation. Here we investigate the quantum theory using renormalization group methods. In this model the running of both the effective Planck mass and the couplings is important. The cosmological predictions are consistent with existing WMAP5 data, with 0.967 ≲ ns ≲ 0.98 (for Ne = 60) and negligible gravity waves. We find a relationship between the spectral index and the Higgs mass that is sharply varying for mh ∼ 120 - 135 GeV (depending on the top mass); in the future, that relationship could be tested against data from PLANCK and LHC. We also comment briefly on how similar dynamics might arise in more general settings, and discuss our assumptions from the effective field theory point of view.
KW - Cosmological inflation
KW - Higgs boson
KW - Standard Model
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U2 - 10.1016/j.physletb.2009.05.054
DO - 10.1016/j.physletb.2009.05.054
M3 - Article
AN - SCOPUS:67649553797
SN - 0370-2693
VL - 678
SP - 1
EP - 8
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
IS - 1
ER -