Abazajian KN, Fuller GM, Patel M. Cosmological constraints on bulk neutrinos.
PHYSICAL REVIEW LETTERS 2003;
90:061301. [PMID:
12633285 DOI:
10.1103/physrevlett.90.061301]
[Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2000] [Indexed: 05/24/2023]
Abstract
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.
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