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- W4387355524 abstract "In this work, for the first time in literature, we compare the predictions of non-minimally coupled Natural and Coleman-Weinberg potentials in the $n_s-r$ plane against the constraints from the latest cosmological data in an extended $Lambda$CDM model where we include non-standard self-interactions among massive neutrinos, mediated by a heavy scalar or vector boson. For the inflationary potentials, we consider two different formulations in gravity that are non-minimally coupled to the scalar field of the inflaton: textit{Metric and Palatini.} We only consider the self-interaction to be present among $tau$-neutrinos and only at moderate strengths. This is because strong interactions among $tau$-neutrinos, or any strength self-interaction among electron- and muon-neutrinos, as well as any strength flavor-universal interactions, are strongly disfavoured from particle physics experiments. In terms of cosmological data, we use the latest public CMB datasets from Planck and BICEP/Keck collaborations, along with other data from CMB lensing, BAO, RSD, and SNe Ia luminosity distance measurements. We find that there are some situations where predictions from the inflationary models are ruled out at more than 2$sigma$ by the minimal $Lambda$CDM$+r$ model, but they are allowed in the self-interacting neutrino scenario." @default.
- W4387355524 created "2023-10-05" @default.
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- W4387355524 date "2023-10-02" @default.
- W4387355524 modified "2023-10-06" @default.
- W4387355524 title "First constraints on Non-minimally coupled Natural and Coleman-Weinberg inflation in the light of massive neutrino self-interactions and Planck+BICEP/Keck" @default.
- W4387355524 doi "https://doi.org/10.48550/arxiv.2310.01491" @default.
- W4387355524 hasPublicationYear "2023" @default.
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