Sterile neutrinos help reconcile the observational results of primordial gravitational waves from Planck and BICEP2
We show that involving a sterile neutrino species in the ΛCDM+r model can help relieve the tension about the tensor-to-scalar ratio r between the Planck temperature data and the BICEP2 B-mode polarization data. Such a model is called the ΛCDM+r+νs model in this paper. Compared to the ΛCDM+r model, t...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2015-01-01
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| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269314008831 |