Rotating 4D Gauss–Bonnet black hole as a particle accelerator

We demonstrate that the rotating four-dimensional Gauss– Bonnet black hole can act as a particle accelerator with arbitrarily high centre-of-mass (CM) energy, when collision of two general particles takes place near event horizon. The are at rest initially infinity, and by fine tuning their angular momenta within finite range, they released so follow time-like geodesics in spacetime, taking on equatorial plane is observed. Gauss–Bonnet coupling constant ?, provides deviation results, from observed Kerr hole. horizon structure, range allowed momentum critical depend value ?. Our results show CM energy depends parameter ? addition to spin a. For extremal cases, diverges horizon, suggesting also similar non-extremal case, there exists upper bound maximal which