Planck constraints on the spectral parameters ns,dns/ dlnk, and r. We compare constraints computed with the second-order slow-roll approximation, starting from flat priors on the HFF parameters at the pivot scale (ϵ1,ϵ2,ϵ3), with those obtained directly from ns,dns/ dlnk, and r. In the latter case we enforce the second-order consistency conditions for the tensor-to-scalar ratio and for the running of the tensor spectral index.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.