Neutrinos in an expanding Universe

[摘要] The Universe contains several billion neutrinos for each nucleon. In this paper, we follow the history of these relic neutrinos as the Universe expanded. At present, their typical velocity is a few hundred km/s and, therefore, their spectra are affected by gravitational forces. This may have led to a phenomenon that could explain two of todays great mysteries: The large-scale structure of the Universe and the increasing rate at which it expands.

[发布机构] Department of Physics, Texas Tech University, Lubbock; TX; 79409-1051, United States^1

[效力级别] 数学

[关键词] Gravitational forces;Large scale structure of the Universe;Relic neutrinos