Brane solutions of a spherical sigma model in six dimensions

Details Brane solutions of a spherical sigma model in six dimensions Brane solutions of a spherical sigma model in six dimensions

2004-07-23

arxiv.org/abs/hep-th/0407208v3

Nucl.Phys.B705:152-166,2005

Physics

High Energy Physics

High Energy Physics - Theory

16 pages, 7 figures, references added, typos corrected, journal version

Scientific paper

10.1016/j.nuclphysb.2004.10.063

We explore solutions of six dimensional gravity coupled to a non-linear sigma model, in the presence of co-dimension two branes. We investigate the compactifications induced by a spherical scalar manifold and analyze the conditions under which they are of finite volume and singularity free. We discuss the issue of single-valuedness of the scalar fields and provide some special embedding of the scalar manifold to the internal space which solves this problem. These brane solutions furnish some self-tuning features, however they do not provide a satisfactory explanation of the vanishing of the effective four dimensional cosmological constant. We discuss the properties of this model in relation with the self-tuning example based on a hyperbolic sigma model.

Affiliated with

Also associated with

No associations

Rating

Brane solutions of a spherical sigma model in six dimensions does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Brane solutions of a spherical sigma model in six dimensions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Brane solutions of a spherical sigma model in six dimensions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-246349