1202.4159 (Jie Yang et al.)

Particle collisions in the lower dimensional rotating black hole
space-time with the cosmological constant    [PDF]

Jie Yang, Yun-Liang Li, Yang Li, Shao-Wen Wei, Yu-Xiao Liu

In this paper, we study the effect of ultra-high energy collisions of two
particles with different energies near the horizon of a 2+1 dimensional BTZ
black hole (BSW effect). We find that the particle with the critical angular
momentum could exist inside the outer horizon of BTZ black hole regardless of
the particle energy. Therefore, for the non-extremal BTZ black hole, the BSW
process is possible on the inner horizon with the fine tuning of parameters
which are characterized by the motion of particle. While for the extremal BTZ
black hole, the particle with the critical angular momentum could only exist on
the degenerate horizon, and the BSW process could also happen there.

View original: http://arxiv.org/abs/1202.4159