Loop corrections to the inflaton quartic coupling in pole inflation models shift the spectral index to align with ACT results, with different one-loop and two-loop requirements depending on the sign of the beta function b1.
Running inflation with unitary Higgs
1 Pith paper cite this work. Polarity classification is still indexing.
1
Pith paper citing it
abstract
We consider the renormalization group(RG) improved inflaton potential in unitarized Higgs inflation where the original Higgs inflation is unitarized by the addition of a real singlet scalar of sigma-model type. The sigma field coupling to the Higgs, which is introduced to reproduce a large non-minimal coupling of the Higgs below the sigma scalar threshold, also improves the Standard Model vacuum stability due to the RG running. Furthermore, the same sigma field coupling determines the reheating temperature or the number of efoldings. Considering the uncertainties in the number of efoldings in the model, we show that the loop-corrected spectral index and tensor-to-scalar ratio are consistent with nine-year WMAP and new Planck data within 1sigma.
fields
hep-ph 1years
2025 1verdicts
UNVERDICTED 1representative citing papers
citing papers explorer
-
Higgs pole inflation with loop corrections in light of ACT results
Loop corrections to the inflaton quartic coupling in pole inflation models shift the spectral index to align with ACT results, with different one-loop and two-loop requirements depending on the sign of the beta function b1.