2006/12/31 by Mansoor Ur Rehman, Mansoor ur Rehman, V. N. Şenoğuz +2 · 7 citations
Mathematics · Physics and Astronomy · #Asymmetry #Baryon asymmetry #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Electron #Geometry #Inflation (cosmology) #Inflaton #Leptogenesis #Mathematical physics #Mathematics #Minimal Supersymmetric Standard Model #Parameter space #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum mechanics #Scalar (mathematics) #Spectral index #Spectral line #Statistics #Supersymmetry #Theoretical physics #Thermodynamics #Yield (engineering) #hep-ph
paper · pdf · doi:10.1103/physrevd.75.043522
published as Phys.Rev.D75:043522,2007 · 21 pages, 12 figures, revtex4. v2: minor revisions, additional references, to appear in PRD
arxiv created 2007/02/05 · openalex publication_date 2007/02/27 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
In their minimal form both supersymmetric and smooth hybrid inflation yield a scalar spectral index ns close to 0.98, to be contrasted with the result ns=0.951_\ensuremath-0.019+0.015 from WMAP3. To realize better agreement, following Bastero-Gil, King, and Shafi, we extend the parameter space of these models by employing a nonminimal K"ahler potential. We also discuss nonthermal leptogenesis by inflaton decay and obtain new bounds in these models on the reheat temperature to explain the observed baryon asymmetry.