Running-mass inflation model and WMAP | Zendy

Laura Covi | Zendy; David H. Lyth | Zendy; A. Melchiorri | Zendy; Carolina J. Ödman | Zendy

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Running-mass inflation model and WMAP

Author(s) -

Laura Covi,

David H. Lyth,

A. Melchiorri,

Carolina J. Ödman

Publication year - 2004

Publication title -

physical review. d. particles, fields, gravitation, and cosmology/physical review. d, particles, fields, gravitation, and cosmology

Language(s) - English

Resource type - Journals

eISSN - 1550-7998

pISSN - 1550-2368

DOI - 10.1103/physrevd.70.123521

Subject(s) - cmb cold spot , cosmic microwave background , inflaton , physics , inflation (cosmology) , scale (ratio) , spectral index , anisotropy , statistical physics , yukawa potential , astrophysics , particle physics , theoretical physics , astronomy , spectral line , quantum mechanics

We consider the observational constraints on the running-mass inflationarymodel, and in particular on the scale-dependence of the spectral index, fromthe new Cosmic Microwave Background (CMB) anisotropy measurements performed byWMAP and from new clustering data from the SLOAN survey. We find that the datastrongly constraints a significant positive scale-dependence of $n$, and wetranslate the analysis into bounds on the physical parameters of the inflatonpotential. 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.Comment: 11 pages, 4 figure

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