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New Constraints on the running-mass inflation model

Laura Covi·David H. Lyth·Alessandro Melchiorri
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Abstract

We evaluate new observational constraints on the two-parameter scale-dependent spectral index predicted by the running-mass inflation model by combining the latest Cosmic Microwave Background (CMB) anisotropy measurements with the recent 2dFGRS data on the matter power spectrum, with Lyman $α$ forest data and finally with theoretical constraints on the reionization redshift. We find that present data still allow significant scale-dependence of $n$, which occurs in a physically reasonable regime of parameter space.

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Laura Covi, David H. Lyth, Alessandro Melchiorri. 2002-10-29. New Constraints on the running-mass inflation model. https://doi.org/10.1103/physrevd.67.043507

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