Bound monopoles in Brans-Dicke theory

Details Bound monopoles in Brans-Dicke theory Bound monopoles in Brans-Dicke theory

2002-06-28

arxiv.org/abs/hep-th/0206252v2

Phys.Lett. B541 (2002) 369-375

Physics

High Energy Physics

High Energy Physics - Theory

9 Revtex pages + 4 ps-figures; reference added, conclusions extended

Scientific paper

10.1016/S0370-2693(02)02279-7

We consider axially symmetric SU(2) Yang-Mills-Higgs (YMH) multimonopoles in Brans-Dicke theory for winding number n > 1. In analogy to the spherically symmetric n=1 solutions, we find that the axially symmetric solutions exist for higher values of the gravitational coupling than in the pure Einstein gravity case. For large values of the gravitational coupling, the solutions collapse to form a black hole which outside the horizon can be described by an extremal Reissner-Nordstrom solution. Similarly as in the pure Einstein gravity case, like-charged monopoles reside in an attractive phase in a limited domain of parameter space. However, we find that the strength of attraction is decreasing for decreasing Brans-Dicke parameter.

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