Confronting hybrid inflation in supergravity with CMB data

2005/03/15 by Rachel Jeannerot, Marieke Postma
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Particle physics theoretical and experimental studies #astro-ph #hep-ph #hep-th

paper · pdf · doi:10.1088/1126-6708/2005/05/071

published as JHEP0505:071,2005 · 36 pages, 15 figures

arxiv created 2005/03/15 · openalex publication_date 2005/05/31 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

F-term GUT inflation coupled to N=1 Supergravity is confronted with CMB data. Corrections to the string mass-per-unit-length away from the Bogomolny limit are taken into account. We find that a superpotential coupling 10^-7/\mcN \lesssim κ\lesssim 10^-2/\mcN, with \mcN the dimension of the Higgs-representation, is still compatible with the data. The parameter space is enlarged in warm inflation, as well as in the curvaton and inhomogeneous reheat scenario. F-strings formed at the end of P-term inflation are also considered. Because these strings satisfy the Bogomolny bound the bounds are stronger: the gauge coupling is constrained to the range 10^-7 < g <10^-4.

Citations

• Inflation and monopoles in supersymmetric SU(4)c × SU(2)L × SU(2)R
• Large Angular Scale Anisotropy in Cosmic Microwave Background Induced by Cosmic Strings
• N = 1 supersymmetric cosmic strings
• Constraining supersymmetric SO(10) models through cosmology
• Topology of cosmic domains and strings
• Radiative Corrections as the Origin of Spontaneous Symmetry Breaking