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Black Hole Supercolliders.

Andrew Mummery1, Joseph Silk2,3,4

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Summary
This summary is machine-generated.

Collisions near a Kerr black hole can create a natural supercollider. This process achieves teraelectronvolt energies, offering a unique astrophysical particle acceleration method.

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Area of Science:

  • Astrophysics
  • Particle Physics
  • General Relativity

Background:

  • Kerr black holes represent rotating singularities in spacetime.
  • Innermost Stable Circular Orbits (ISCO) are critical regions near black holes.
  • Particle acceleration mechanisms are crucial for understanding high-energy phenomena.

Purpose of the Study:

  • To identify a natural astrophysical process for creating a supercollider.
  • To determine the feasibility of achieving teraelectronvolt (TeV) center-of-mass energies in an astrophysical setting.

Main Methods:

  • Analyzing particle trajectories near a near-extremal Kerr black hole.
  • Investigating collisions between infalling particles and matter at the retrograde ISCO.
  • Calculating center-of-mass energies of these collisions.

Main Results:

  • Identified collisions of free-falling particles with a disk at the retrograde ISCO as a unique mechanism.
  • Demonstrated that this process can yield center-of-mass energies in the tens to hundreds of teraelectronvolt (TeV) range.
  • Established this as an astronomically natural method for particle acceleration.

Conclusions:

  • A natural gravitational particle accelerator, or supercollider, can be formed near Kerr black holes.
  • The proposed mechanism offers a pathway to achieving extremely high particle collision energies within an astrophysical context.