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arXiv · 1209.2277

Can Standard Model Higgs Seed the Formation of Structures in Our Universe?

Ki-Young Choi·Qing-Guo Huang
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Abstract

We study the Standard Model Higgs field as a source for the primordial curvature perturbation, particularly in the curvaton and modulated reheating scenario. We conclude that the Higgs cannot play as a curvaton due to the small energy density when it decays, however the modulated reheating by Higgs can be a viable scenario. In the latter case, the non-Gaussianity is inevitably generated and strongly constrains the type of potential of inflaton field and Higgs-dependent interaction term. For the quadratic potential of the inflaton field with decay rate which non-linearly depends on the Higgs vacuum expectation value, the contribution of Higgs field to the primordial curvature perturbation must be less than 8%.

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Ki-Young Choi, Qing-Guo Huang. 2013-01-19. Can Standard Model Higgs Seed the Formation of Structures in Our Universe?. https://doi.org/10.1103/physrevd.87.043501

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