Regular and black hole solutions to higher order curvature Einstein--Yang-Mills--Grassmannian systems in 5 dimensions

Details Regular and black hole solutions to higher order curvature Einstein--Yang-Mills--Grassmannian systems in 5 dimensions Regular and black hole solutions to higher order curvature Einstein--Yang-Mills--Grassmannian systems in 5 dimensions

2004-05-27

arxiv.org/abs/hep-th/0405255v2

Int.J.Mod.Phys.A19:5085,2004

Physics

High Energy Physics

High Energy Physics - Theory

12 pages, 4 figures

Scientific paper

10.1142/S0217751X0401986X

We construct both regular and black hole spherically symmetric solutions to the original higher curvature EYM model augmented by a Grassmannian sigma model field in $d=5$ spacetime dimensions. Unlike the original model, the new model supports regular solutions in the flat space limit. We find that a peculiar singular behaviour of the solutions in the original model, persists in the case of the modified model too. A study of the solutions to the Grassmannian model in flat space is also carried out.

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