Conformally invariant gauge theory of three-branes in 6-D and the cosmological constant Academic Article uri icon


  • 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. Comment: 12 pages, Latex, no figures; final version accepted for publication in Phys.Rev. D; Sect.II expanded

publication date

  • January 1, 2004