The running-mass inflation model and WMAP

Phys.Rev. D70 (2004) 123521 We consider the observational constraints on the running-mass inflationary model, and in particular on the scale-dependence of the spectral index, from the new Cosmic Microwave Background (CMB) anisotropy measurements performed by WMAP and from new clustering data from th...

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Bibliographic Details
Main Authors Covi, Laura, Lyth, David H, Melchiorri, Alessandro, Odman, Carolina J
Format Journal Article
LanguageEnglish
Published 06.08.2004
Subjects
Physics - Astrophysics of Galaxies
Physics - Cosmology and Nongalactic Astrophysics
Physics - Earth and Planetary Astrophysics
Physics - High Energy Astrophysical Phenomena
Physics - Instrumentation and Methods for Astrophysics
Physics - Solar and Stellar Astrophysics
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Summary:Phys.Rev. D70 (2004) 123521 We consider the observational constraints on the running-mass inflationary model, and in particular on the scale-dependence of the spectral index, from the new Cosmic Microwave Background (CMB) anisotropy measurements performed by WMAP and from new clustering data from the SLOAN survey. We find that the data strongly constraints a significant positive scale-dependence of $n$, and we translate the analysis into bounds on the physical parameters of the inflaton potential. Looking deeper into specific types of interaction (gauge and Yukawa) we find that the parameter space is significantly constrained by the new data, but that the running mass model remains viable.
Bibliography:CERN-PH-TH/2004-148
DOI:10.48550/arxiv.astro-ph/0408129