Running-mass inflation model and WMAP

Laura Covi, David H. Lyth, Alessandro Melchiorri, and Carolina J. Odman
Phys. Rev. D 70, 123521 – Published 16 December 2004

Abstract

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.

  • Figure
  • Figure
  • Figure
  • Figure
  • Received 11 August 2004

DOI:https://doi.org/10.1103/PhysRevD.70.123521

©2004 American Physical Society

Authors & Affiliations

Laura Covi1, David H. Lyth2, Alessandro Melchiorri3, and Carolina J. Odman3

  • 1Theory Division, Department of Physics, CERN, CH 1211 Geneva, Switzerland
  • 2Physics Department, Lancaster University, Lancaster LA1 4YB, United Kingdom
  • 3Physics Department, University of Rome “La Sapienza,” Ple Aldo Moro 2, 00185 Rome, Italy

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 70, Iss. 12 — 15 December 2004

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review D

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×