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arXiv · 1406.6822

Weighing neutrinos in $f(R)$ gravity in light of BICEP2

Xiao-ying Zhou·Jian-hua He
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Abstract

We constrain the neutrino mass in $f(R)$ gravity using the latest observations from the Planck, BAO and BICEP2 data. We find that the measurement on the B-modes can break the degeneracy between the massive neutrinos and the $f(R)$ gravity. We find a non-zero value of the Compton wavelengths $B_{0}$ at a $68\%$ confidence level for the $f(R)$ model in the presence of massive neutrinos when the BICEP2 data is used. Furthermore, the tension on the tensor-to-scalar ratios between the measured values from Plank and BICEP2 is significantly reconciled in our model.

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Xiao-ying Zhou, Jian-hua He. 2014-06-26. Weighing neutrinos in $f(R)$ gravity in light of BICEP2. https://doi.org/10.1088/0253-6102%2F62%2F1%2F18

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