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(Super-)renormalizable hairy meronic black holes

High Energy Physics - Theory 2026-04-29 v1 General Relativity and Quantum Cosmology

Abstract

We construct an analytical black hole solution in the Einstein-Maxwell-Yang-Mills theory with a conformally coupled scalar field in four dimensions, which generalizes the charged Mart\'inez-Troncoso-Zanelli (MTZ) black hole in the presence of self-gravitating non-Abelian gauge fields. The internal gauge group is determined by the horizon curvature, becoming SU(N)SU(N) in the case of positive curvature and SU(N1,1)SU(N-1,1) when the curvature is negative. Moreover, this solution is employed as a conformal seed to obtain new meronic spacetimes dressed with all (super-)renormalizable contributions of the scalar field, which provides the generalization of the Anabal\'on-Cisterna (AC) solution when self-gravitating non-Abelian gauge fields are included. Finally, we consider the non-Noetherian extension of the conformal scalar fields, which still yields a second-order conformally invariant scalar equation, even though the action is not. In that case, we show that static black hole solutions can also be charged with Yang-Mills fields.

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Cite

@article{arxiv.2604.25844,
  title  = {(Super-)renormalizable hairy meronic black holes},
  author = {Luis Avilés and Borja Diez},
  journal= {arXiv preprint arXiv:2604.25844},
  year   = {2026}
}

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12 pages