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- W3040444818 endingPage "064" @default.
- W3040444818 startingPage "064" @default.
- W3040444818 abstract "Abstract We study preheating in plateau inflation in the Palatini formulation of general relativity, in a special case that resembles Higgs inflation. It was previously shown that the oscillating inflaton field returns to the plateau repeatedly in this model, and this leads to tachyonic production of inflaton particles. We show that a minimally coupled spectator scalar field can be produced even more efficiently by a similar mechanism. The mechanism is purely gravitational, and the scalar field mass can be of order 10 13 GeV, larger than the Hubble scale by many orders of magnitude, making this a candidate for superheavy dark matter." @default.
- W3040444818 created "2020-07-10" @default.
- W3040444818 creator A5021104349 @default.
- W3040444818 creator A5032093203 @default.
- W3040444818 creator A5051458515 @default.
- W3040444818 date "2021-03-01" @default.
- W3040444818 modified "2023-10-15" @default.
- W3040444818 title "Gravitational dark matter production in Palatini preheating" @default.
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- W3040444818 doi "https://doi.org/10.1088/1475-7516/2021/03/064" @default.