Enlarging the parameter space of standard hybrid inflation

2006/04/30 by Rachel Jeannerot, Marieke Postma
Physics and Astronomy · #Black Holes and Theoretical Physics #COSMIC cancer database #Cosmic background radiation #Cosmic string #Cosmological model #Cosmology #Cosmology and Gravitation Theories #Galaxies: Formation, Evolution, Phenomena #Inflation (cosmology) #Parameter space #Space (punctuation) #Standard Model (mathematical formulation) #astro-ph #hep-ph #hep-th

paper · pdf · doi:10.1088/1475-7516/2006/07/012

published as JCAP 0607 (2006) 012 · 33 pages, 10 figures. Typos corrected

openalex publication_date 2006/07/26 · arxiv created 2006/11/08 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/06

Abstract

We show that the parameter space for F -term inflation which predicts the formation of cosmic strings is larger than previously estimated, firstly, because realistic embeddings in GUT theories alter the standard scenario, making the inflationary potential less steep and, secondly, because the strings which form at the end of inflation are not necessarily topologically stable down to low scales. In shifted and smooth inflation, strings do not form at all. We also discuss D -term inflation; here the possibilities are much more limited for enlarging the parameter space.

Citations

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