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Title
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Consistency relation for natural inflation with Planck 2015 data
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Type
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JournalPaper
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Keywords
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Nonminimal inflation, Einstein frame, Observational constraints
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Abstract
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We consider the cosine Natural inflation model that is a good candidate to explain the initial accelerating phase of the universe. By computing the inflationary parameters in Einstein frame, we construct a consistency relation between the scalar spectral index, tensor-to-scalar ratio, as well as the running of the scalar spectral index and compare the results with recently released Planck 2015 observational data. Our results show that a Natural Inflation model in Einstein frame has a good agreement with the observational data.
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Researchers
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Narges Rashidi Talouki (Third Researcher), Hasti Kahvaee (Second Researcher), Kourosh Nozari (First Researcher)
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