Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2006-12-20
J.Phys.Conf.Ser.67:012009,2007
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
11 pages, Latex file with IOP style. To appear in Journal of Physics: Conference Series. Based on talk present by O.B. at the
Scientific paper
10.1088/1742-6596/67/1/012009
We propose the mechanism of spontaneous symmetry breaking of a bulk vector field as a way to generate the selection of bulk dimensions invisible to the standard model confined to the brane. By assigning a non-vanishing vacuum value to the vector field, a direction is singled out in the bulk vacuum, thus breaking the bulk Lorentz symmetry. We present the condition for induced Lorentz symmetry on the brane, as phenomenologically required.
Bertolami Orfeu
Carvalho Catarina
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