Abazajian Kevork N, Fuller George M, Patel Mitesh
Department of Physics, University of California, San Diego, La Jolla, California 92093-0319, USA.
Phys Rev Lett. 2003 Feb 14;90(6):061301. doi: 10.1103/PhysRevLett.90.061301. Epub 2003 Feb 10.
Recent models invoking extra space-like dimensions inhabited by (bulk) neutrinos are shown to have significant cosmological effects if the size of the largest extra dimension is R greater, similar 1 fm. We consider effects on cosmic microwave background anisotropies, big bang nucleosynthesis, deuterium and 6Li photoproduction, diffuse photon backgrounds, and structure formation. The resulting constraints can be stronger than either bulk graviton overproduction constraints or laboratory constraints.
最近提出的一些模型认为存在由(体)中微子占据的额外类空维度,如果最大额外维度的尺寸(R)大于(近似)(1)飞米,这些模型会产生显著的宇宙学效应。我们考虑了对宇宙微波背景各向异性、大爆炸核合成、氘和(6)锂的光致产生、漫射光子背景以及结构形成的影响。由此产生的限制可能比体引力子过量产生的限制或实验室限制更强。