2009/04/30 by Paramita Dey, Biswarup Mukhopadhyaya, Soumitra SenGupta
Physics and Astronomy · #Astrophysics #Brane #Classical mechanics #Cosmological constant #Cosmology #Cosmology and Gravitation Theories #Dark energy #Electroweak interaction #Electroweak scale #Gravitation #Hierarchy problem #Lambda-CDM model #Neutrino #Neutrino Physics Research #Particle physics #Particle physics theoretical and experimental studies #Physics #Planck #Planck mass #Randall–Sundrum model #Theoretical physics #hep-ph
paper · pdf · doi:10.1103/physrevd.80.055029
published as Phys.Rev.D80:055029,2009 · 5 pages, 3 figures, To appear in Physical Review D
arxiv created 2009/09/24 · openalex publication_date 2009/09/25 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The Randall-Sundrum model of warped geometry in a five-dimensional scenario, aimed at explaining the hierarchy between the Planck and electroweak scales, is intrinsically unstable in its minimal form due to negative tension of the visible brane. A proposed solution to the problem yields a negative cosmological constant in four dimensions. We show that this wrong-sign cosmological constant is restricted to small values, therefore requiring less cancellation from hitherto unknown physics, if bulk neutrinos are postulated to explain the observed neutrino mass pattern. Thus neutrino masses, a stable TeV-brane configuration and new physics in the context of the cosmological constant get rather suggestively connected by the same thread.