Particle Collision near 1+1- Dimensional Horava-Lifshitz Black Hole and Naked Singularity

Abstract

The unbounded center of mass (CM) energy of oppositely moving colliding particles near horizon emerge also in 1+1- dimensional Horava-Lifshitz gravity. This theory has imprints of renormalizable quantum gravity characteristics in accordance with the method of simple power counting. Surpris- ingly the result obtained is not valid for a 1- dimensional Compton- like process between an outgoing photon and an infalling massless/ massive particle. It is possible to achieve unbounded CM energy due to collision between infalling photons and particles. The source of outgoing particles may be at- tributed to an explosive process just outside the horizon for a black hole and the naturally repulsive character for the case of a naked singularity. It is found that absence of angular momenta in 1+1- dimensions does not yield unbounded energy for collisions in the vicinity of naked singularities.

9 pages, To be published in the Advances in High Energy Physics, The special issue of "Dark Matter and Dark Energy Cosmologies and Alternative Theories of Gravitation"

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• Schwarzschild black hole surrounded by quintessential matter field as an accelerator for spinning particles
• Collision of particles near a three-dimensional rotating Hořava AdS black hole
• Motion and collision of particles near DST Black holes