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Dark Matter in logarithmic $F(R)$ gravity

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arxiv 1905.05503 v1 pith:FZOKYLR6 submitted 2019-05-14 gr-qc

classification gr-qc
keywords darkfieldgravitymatterenergylogarithmicmodelscalaron
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abstract

The logarithmic $R^2$-corrected $F(R)$ gravity is investigated as a prototype model of modified gravity theories with quantum corrections. By using the auxiliary field method, the model is described by the general relativity with a scalaron field. The scalaron field can be identified as an inflaton at the primordial inflation era. It is also one of the dark matter candidates in the dark energy era. It is found that a wide range of the parameters is consistent with the current observations of CMB fluctuations, dark energy and dark matter.

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Cited by 1 Pith paper

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  1. Big Bang Nucleosynthesis Hunts Chameleon Dark Matter

    hep-ph 2019-08 conditional novelty 5.0 of 10

    Scalaron dark matter in R²-corrected F(R) gravity satisfies current BBN helium bounds and yields a new bound α ≲ 2×10^5 GeV^-2 on the R² coupling.

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