Cosmology Based on f(R) Gravity Admits 1 eV Sterile Neutrinos

Alexei A. Starobinsky; Hayato Motohashi; Jun'ichi Yokoyama

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Cosmology Based on f(R) Gravity Admits 1 eV Sterile Neutrinos

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arxiv 1203.6828 v2 pith:D7KJAHJZ submitted 2012-03-30 astro-ph.CO hep-phhep-th

Hayato Motohashi , Alexei A. Starobinsky , Jun'ichi Yokoyama This is my paper

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keywords gravitymassesneutrinoneutrinossterileacceleratedadmitsconstraints

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It is shown that the tension between recent neutrino oscillation experiments, favoring sterile neutrinos with masses of the order of 1 eV, and cosmological data which impose stringent constraints on neutrino masses from the free streaming suppression of density fluctuations, can be resolved in models of the present accelerated expansion of the Universe based on f(R) gravity.

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