d=4+1 gravitating non-Abelian solutions with bi-azimuthal symmetry

摘要

We construct static, asymptotically flat solutions of SU(2) Einstein-Yang-Mills theory in 4 + 1 dimensions, subject to bi-azimuthal symmetry. Both particle-like and black hole solutions are considered for two different sets of boundary conditions in the Yang-Mills sector, corresponding to multi-solitons and soliton-antisoliton pairs. For gravitating multi-soliton solutions, we find that their mass per unit charge is lower than the mass of the corresponding unit charge, spherically symmetric soliton. (c) 2007 Elsevier B.V. All rights reserved.