Pure Natural Inflation

Published 26 Jun 2017 in hep-ph, astro-ph.CO, and hep-th | (1706.08522v2)

Abstract: We point out that a simple inflationary model in which the axionic inflaton couples to a pure Yang-Mills theory may give the scalar spectral index (n_s) and tensor-to-scalar ratio (r) in complete agreement with the current observational data.

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