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Journal Articles Physical Review D Year : 2006

Predictions of single field inflation for the tensor/scalar ratio and the running spectral index

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Abstract

We study the single field slow-roll inflation models that better agree with the available CMB and LSS data including the three years WMAP data: new inflation and hybrid inflation. We study these models as effective field theories in the Ginsburg-Landau context: a trinomial potential turns out to be a simple and well motivated model. The spectral index ns of the adiabatic fluctuations, the ratio r of tensor to scalar fluctuations and the running index dns/dlnf k are studied in detail. We derive explicit formulas for ns, r and dns/dlnf k and provide relevant plots. In new inflation, and for the chosen central value ns=0.95, we predict 0.03
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Dates and versions

hal-03732244 , version 1 (01-09-2022)

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Hector J. de Vega, Norma G. Sánchez. Predictions of single field inflation for the tensor/scalar ratio and the running spectral index. Physical Review D, 2006, 74, pp.63519. ⟨10.1103/PhysRevD.74.063519⟩. ⟨hal-03732244⟩
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