Abstract
We study a Skyrme-like model with the Skyrme term and a sixth-order derivative term as higher-order terms, coupled to gravity and we construct Schwarzschild black hole Skyrme hair. We find, surprisingly, that the sixth-order derivative term alone cannot stabilize the black hole hair solutions; the Skyrme term with a large enough coefficient is a necessity.
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Gudnason, S.B., Nitta, M. & Sawado, N. Black hole Skyrmion in a generalized Skyrme model. J. High Energ. Phys. 2016, 55 (2016). https://doi.org/10.1007/JHEP09(2016)055
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DOI: https://doi.org/10.1007/JHEP09(2016)055