Can the LHC Create Atom-Sized Black Holes?

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Discussion Overview

The discussion revolves around the possibility of the Large Hadron Collider (LHC) creating black holes at or smaller than the size of an atom during particle collisions. It explores theoretical implications, particularly concerning Hawking radiation and energy conservation in such scenarios.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • Some participants propose that while it is theoretically possible for the LHC to create atom-sized black holes, the likelihood is low due to cosmic rays with higher energies impacting Earth without forming black holes.
  • One participant raises concerns about Hawking radiation, suggesting that smaller black holes would emit more radiation and could potentially cause noticeable effects in the collision chamber.
  • Another participant counters that the energy release from any formed black holes would not exceed the energy input from collisions, indicating that the detectors are designed to handle such energies.
  • There is a suggestion that while atom-sized black holes could theoretically form, they have not been observed, possibly due to insufficient energy or their rarity at current energy levels.
  • A later reply clarifies that smaller black holes would have a higher power output but would also have very short lifetimes, emphasizing that the total energy emitted would not exceed the collision energy.

Areas of Agreement / Disagreement

Participants express differing views on the formation of atom-sized black holes at the LHC, with some believing it is possible while others argue it is unlikely. The discussion remains unresolved regarding the implications of Hawking radiation and the energy dynamics involved.

Contextual Notes

There are limitations in the discussion regarding assumptions about the energy levels required for black hole formation and the nature of Hawking radiation, which remain unresolved.

hsdrop
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Is it possible for the L.H.C. to have an atom size (or smaller) black hole from the collision chambers??
This will lead up to a bigger question if it a possible yes, I just don't want to sound like a moron right off the bat.
 
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hsdrop said:
Is it possible for the L.H.C. to have an adam size (or smaller) black hole from the collision chambers??

I assume you mean an atom sized black hole.
While theoretically possible, this is not believed to be a problem since cosmic rays with energies larger than what the LHC can produce impact the Earth all the time and we aren't all stuck inside a black hole.
 
Ok but I was not going that way with my question, I do know better on that idea.
I was wondering about Hawking Radiation. I was reading that the larger holes (or ones with more gravitational forces) give off less blackbody radiation than ones with a smaller gravitational force. The smaller that gets the more blackbody radiation it expels. The smallest one could get would be atom size with the most radiation given off right before it evaporates with a bang.
So would that not cause huge problems in the chamber and be easily noticed ??
I really hope that I'm understanding at least a little of what I'm asking about.
 
No, the energy release would never be bigger than what you put into a single collision. The detectors were built for handling energies of that size.
 
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So... is that proof that atom size holes do not form in the lhc??
 
No.

They could form. They have not been observed so far, so either the energy is not sufficient (very likely) or they are incredibly rare at the current energy (possible, but unlikely).

They would lead to a large number of particles at medium energies hitting the detectors, with a large total energy (but smaller than the total collision energy) - quite easy to find.
 
Thank you everyone for taking the time to answer my questions, I just have one more left.
Am I misunderstanding the concept of hawking radiation with the size of the singularity and the blackbody radiation rate?
 
The singularity (if it exists at all) doesn't have a size. The black hole with its event horizon has something that can be called a size.

Smaller black holes have a larger power. A microscopic black hole at the LHC would have a very high power - but it would also have an incredibly short lifetime. The total energy emitted is just the energy put in - at most the collision energy of the protons.
 
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Ok I believe I understand it now.( man I feel dumb now :doh: )
I did not take into account the first law of thermodynamics the conservation of energy.
Thank you again for helping me understand the concept.
 

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