Conformally invariant gauge theory of 3-branes in 6D and the cosmological constant Academic Article uri icon

abstract

  • 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.

publication date

  • January 1, 2004