Higgs inflation at the critical point
By Fedor Bezrukov, M. Shaposhnikov. 2014
235 citations recorded by the source corpus.
Higgs inflation can occur if the Standard Model (SM) is a self-consistent effective field theory up to inflationary scale. This leads to an upper bound on the top Yukawa coupling, y(t)(phys) < y(t)(crit) and thus on the mass of the top quark m(t). If m(t) is more than a few hundred of MeV below the critical value, the Higgs inflation predicts the universal values of inflationary indexes, r similar or equal to 0.003 and n(s) similar or equal to 0.97, independently on the SM parameters. We show that in the vicinity of the critical point y(t)(crit) the inflationary indexes acquire an essential dependence on m(t) and on the mass of the Higgs boson M-h. In particular, the amplitude of the gravitational waves can exceed considerably the universal value. (C) 2014 Elsevier B.V.
Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/6aeb87635bc4e1dd58f497bb5803796875920125
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Citations in the corpus
- Primordial black hole dark matter from single field inflation (2017, background): “We would like to conclude this section by mentioning reference [42], which considers an action for a scalar field that can be formally obtained from ours by setting b1 = −1, inspired from [70,71].”
- Higgs inflation with loop corrections in the Palatini formulation (2017, methodology): “We have used a simple approximation for loop corrections to get analytical understanding in addition to numerical results, considering the two different parametrisations of [56, 63] and [73].”
- Violent preheating in inflation with nonminimal coupling (2016, background): “This conclusion can change in the critical Higgs inflation [29, 30], where ξ ∼ O(10).”
- Classical and quantum initial conditions for Higgs inflation (2015, background): “[19] or invokes a fine-tuning on the initial values of the running parameters.”
- On primordial black holes from an inflection point (2017, background): “The fascinating fact is that such a feature of the potential, and indeed a potential that closely resembles the one of [7], can naturally appear in Higgs inflation [8, 9],[10].”