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arXiv · 1010.4395

Non-Gaussianity from Compositeness

G. L. Alberghi·R. Casadio
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Abstract

By assuming the field seeding the curvature perturbations $ ζ$ is a dynamically arising condensate, we are able to derive the relation $ f_{NL} ^2 \simeq 10^8 H / M_c $ between the non-Gaussianity parameter $ f_{NL} $ and the ratio of the inflationary scale $ H $ to the cutoff scale $ M_c $ of the effective theory describing the condensate, thus relating the experimental bound on $ f_{NL} $ to a bound on $ M_c $.

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G. L. Alberghi, R. Casadio. 2010-10-21. Non-Gaussianity from Compositeness. https://arxiv.org/abs/1010.4395

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