Cosmological and astrophysical limits on brane fluctuations



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Ruiz Cembranos, José Alberto and Dobado González, Antonio and López Maroto, Antonio (2003) Cosmological and astrophysical limits on brane fluctuations. Physical Review D , 68 (10). ISSN 0556-2821

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We consider a general brane-world model parametrized by the brane tension scale f and the branon mass M. For a low tension compared to the fundamental gravitational scale, we calculate the relic branon abundance and its contribution to the cosmological dark matter. We compare this result with the current observational limits on the total and hot dark matter energy densities and derive the corresponding bounds on f and M. Using the nucleosynthesis bounds on the number of relativistic species, we also set a limit on the number of light branons in terms of the brane tension. Finally, we estimate the bounds coming from the energy loss rate in supernovae explosions due to massive branon emission.

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©2003 The American Physical Society

Uncontrolled Keywords:Goldstone Bosons, Neutrino Burst, Dimensions, Wmap, Millimeter, Universe
Subjects:Sciences > Physics
ID Code:22116
Deposited On:27 Jun 2013 15:45
Last Modified:19 Nov 2014 13:09

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