Phys. Rev. Lett. 90, 061301 (2003) [4 pages]

Cosmological Constraints on Bulk Neutrinos

Abstract

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Citing Articles (8)

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Kevork N. Abazajian^1,2,*, George M. Fuller^1,†, and Mitesh Patel^1,‡
¹Department of Physics, University of California, San Diego, La Jolla, California 92093-0319
²NASA/Fermilab Astrophysics Center, Fermi National Accelerator Laboratory, Batavia, Illinois 60510-0500

Received 3 November 2000; published 10 February 2003

Recent models invoking extra spacelike dimensions inhabited by (bulk) neutrinos are shown to have significant cosmological effects if the size of the largest extra dimension is R≳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.

URL:

http://link.aps.org/doi/10.1103/PhysRevLett.90.061301

DOI:

10.1103/PhysRevLett.90.061301

PACS:

98.80.Cq, 11.10.Kk, 14.60.Pq, 95.35.+d

^*Electronic address: aba@fnal.gov

^†Electronic address: gfuller@ucsd.edu

^‡Electronic address: mitesh@physics.ucsd.edu

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Phys. Rev. Lett. 90, 061301 (2003) [4 pages]

Cosmological Constraints on Bulk Neutrinos