The running-mass inflation model and WMAP

Details The running-mass inflation model and WMAP The running-mass inflation model and WMAP

2004-08-06

arxiv.org/abs/astro-ph/0408129v1

Phys.Rev. D70 (2004) 123521

Astronomy and Astrophysics

Astrophysics

11 pages, 4 figures

Scientific paper

10.1103/PhysRevD.70.123521

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.

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