  Lovelock theory of gravity provides a tractable model to investigate the
effects of higher-curvature terms in the context of AdS/CFT. Yielding second
order, ghost-free field equations, this theory represents a minimal setup in
which higher-order gravitational couplings in asymptotically Anti-de Sitter
(AdS) spaces, including black holes, can be solved analytically. This however
has an obvious limitation as in dimensions lower than seven, the contribution
from cubic or higher curvature terms is merely topological. Therefore, in order
to go beyond quadratic order and study higher terms in AdS_5 analytically, one
is compelled to look for other toy models. One such model is the so-called
quasi-topological gravity, which, despite being a higher-derivative theory,
provides a tractable setup with R^3 and R^4 terms. In this paper, we
investigate AdS_5 black holes in quasi-topological gravity. We consider the
theory conformally coupled to matter and in presence of Abelian gauge fields.
We show that charged black holes in AdS_5 which, in addition, exhibit a
backreaction of the matter fields on the geometry can be found explicitly in
this theory. These solutions generalize the black hole solution of
quasi-topological gravity and exist in a region of the parameter spaces
consistent with the constraints coming from causality and other consistency
conditions. They have finite conserved charges and exhibit non-trivial
thermodynamical properties.
