Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2003-11-12
Phys.Rev. D70 (2004) 026003
Physics
High Energy Physics
High Energy Physics - Theory
12 pages, Latex, no figures; final version accepted for publication in Phys.Rev. D; Sect.II expanded
Scientific paper
10.1103/PhysRevD.70.026003
It is shown that the gauge theory of relativistic 3-Branes can be formulated in a conformally invariant way if the embedding space is six-dimensional. The implementation of conformal invariance requires the use of a modified measure, independent of the metric in the action. Brane-world scenarios without the need of a cosmological constant in 6D are constructed. Thus, no ``old'' cosmological constant problem appears at this level.
Guendelman Eduardo I.
Spallucci Euro
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