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

Abstract

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.

12 pages, 4 figures

References in corpus (2)

• Higher order curvature generalisations of Bartnick-McKinnon and coloured black hole solutions in $d=5$
• Particle-like solutions to higher order curvature Einstein--Yang-Mills systems in d dimensions

Cited by in corpus (2)

• Particle-like solutions to the Yang--Mills-dilaton system in d=4+1 dimensions
• d=4+1 gravitating nonabelian solutions with bi-azimuthal symmetry