We consider Deser-Sarioglu-Tekin (DST) black holes as background and we study
such the motion of massive particles as the collision of two spinning particles
in the vicinity of its horizon. New kinds of orbits are allowed for small
deviations of General Relativity, but the behavior of the collision is similar
to the one observed for General Relativity. Some observables like bending of
light and the perihelion precession are analyzed.Comment: 21 pages and 10 figures. New versio
