1994/02/11 by Scott Dodelson, G. Gyuk, Geza Gyuk +1 · 51 citations
Physics and Astronomy · #Anisotropy #Astrophysics #Cold dark matter #Cosmic neutrino background #Cosmic ray #Cosmology #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #Dark energy #Dark matter #Electron neutrino #Galaxy #Hot dark matter #Neutrino #Neutrino detector #Neutrino oscillation #Nuclear physics #Nucleosynthesis #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum mechanics #Stars #Sterile neutrino #Structure formation #Tau neutrino #Universe #Warm dark matter #astro-ph
paper · pdf · doi:10.1103/physrevlett.72.3754
published in Physical Review Letters 72(24), 3754-3757 (American Physical Society) · 9 pages LaTeX plus 4 figures (available upon request) FERMILAB--Pub--94/026-A
arxiv created 1994/02/11 · openalex publication_date 1994/06/13 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
The cold dark matter scenario for structure formation in the Universe has many successes; however, when its spectrum of density perturbations is normalized to the Cosmic Background Explorer anisotropy measurement the level of inhomogeneity predicted on small scales is too large. This can be remedied by a tau neutrino of mass 1-10 MeV and lifetime 0.1-100 sec whose decay products include electron neutrinos because it allows the total energy density in relativistic particles to be doubled without interfering with nucleosynthesis.