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- W3105693537 endingPage "017" @default.
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- W3105693537 abstract "We study the generation of non-Gaussianity in models of hybrid inflation with two inflaton fields, (2-brid inflation). We analyse the region in the parameter and the initial condition space where a large non-Gaussianity may be generated during slow-roll inflation which is generally characterised by a large f_NL, tau_NL and a small g_NL. For certain parameter values we can satisfy tau_NL>>f_NL^2. The bispectrum is of the local type but may have a significant scale dependence. We show that the loop corrections to the power spectrum and bispectrum are suppressed during inflation, if one assume that the fields follow a classical background trajectory. We also include the effect of the waterfall field, which can lead to a significant change in the observables after the waterfall field is destabilised, depending on the couplings between the waterfall and inflaton fields." @default.
- W3105693537 created "2020-11-23" @default.
- W3105693537 creator A5043594476 @default.
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- W3105693537 date "2009-02-12" @default.
- W3105693537 modified "2023-10-18" @default.
- W3105693537 title "Large non-Gaussianity from two-component hybrid inflation" @default.
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- W3105693537 doi "https://doi.org/10.1088/1475-7516/2009/02/017" @default.
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