RT Journal Article
T1 Cosmological and astrophysical limits on brane fluctuations
A1 Ruiz Cembranos, José Alberto
A1 Dobado González, Antonio
A1 López Maroto, Antonio
AB 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.
PB American Physical Society
SN 0556-2821
YR 2003
FD 2003-11
LK https://hdl.handle.net/20.500.14352/50740
UL https://hdl.handle.net/20.500.14352/50740
LA eng
NO ©2003 The American Physical Society
DS Docta Complutense
RD 15 jun 2025