2026-06-27T15:36:54Zhttps://docta.ucm.es/rest/oai/requestoai:docta.ucm.es:20.500.14352/512302023-08-28T05:08:27Zcom_20.500.14352_14col_20.500.14352_15
Docta Complutense
author
López Maroto, Antonio
2023-06-20T10:47:33Z
2023-06-20T10:47:33Z
2004-05-24
0556-2821
10.1103/PhysRevD.69.101304
https://hdl.handle.net/20.500.14352/51230
http://journals.aps.org/prd/abstract/10.1103/PhysRevD.69.101304
http://journals.aps.org/
We show that, under general assumptions, in six-dimensional brane-world models with compactified large extra dimensions, the energy density of brane oscillations scales as that of cold dark matter and its present value is compatible with observations. This value is obtained from the only dimensional scale in the theory, namely, the fundamental scale of gravity in six dimensions M(6)similar to1 TeV, without any fine-tuning or the introduction of additional mass scales apart from the large size of the extra dimensions. It has been suggested that the same kind of model could provide also the correct magnitude of the cosmological constant. This observation might be relevant for the resolution of the cosmic coincidence problem in the brane-world scenario.
eng
Brane oscillations and the cosmic coincidence problem
journal article
URL
https://docta.ucm.es/bitstreams/ce8bc6f4-eb3b-46ed-9f24-277402e31083/download
File
MD5
b78a5bab73964d280a259315ed500a27
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application/pdf
MarotoAL49libre.pdf
URL
https://docta.ucm.es/bitstreams/ead0a588-8d05-449f-a38c-1c5d8487b76d/download
File
MD5
e0b1c1f8f7e672b9fc1b6ada708e1f6d
26030
text/plain
MarotoAL49libre.pdf.txt