A Scenario for Strong Gravity in Particle Physics

In summary, a paper titled "A Scenario for Strong Gravity in Particle Physics" explores the idea of black holes appearing at accelerator experiments and their behavior at sub-Planckian masses. The authors conclude that these states would obey the Heisenberg uncertainty principle and behave like regular elementary particles. However, there is some uncertainty about whether these states would still have an event horizon and act like regular particles. The paper is not peer-reviewed and can be found on arXiv.
  • #1
asimov42
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4
Hi all,

I recently flipped through a paper which got some press several years back, entitled "A Scenario for Strong Gravity in Particle Physics: An alternative mechanism for black holes to appear at accelerator experiments." There are a lot of speculative elements in the work, but the thing that struck me is their conclusion (or one of them):

"In other words, the model predicts that any states to be found at sub-Planckian masses will behave normally, and will be essentially identical to elementary particles. "Perhaps the most reassuring conclusion that we find is that the dynamical solution in either model forces the sub-Planckian states to obey the Heisenberg uncertainty principle, and thus allows them to act as normal fundamental particles," the scientists write."

Even if the authors' conjectures about strong gravity and shielding were true, wouldn't the existence of an event horizon surrounding a sub-Planckian hole imply that it would not act like a regular elementary particle (e.g., absorbing and releasing photons). There is some discussion of stationary states later in the paper, but I'm not clear if those states are the same as elementary particles.

For reference, the arXiv link is here: https://arxiv.org/abs/0905.1667 (and granted, as far as I can tell, the paper does not appear in a peer-reviewed journal).
 
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Closed pending moderation.

Edit: the thread is reopened. All posters should keep in mind that this doesn't appear to be peer-reviewed work.
 
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1. What is "A Scenario for Strong Gravity in Particle Physics"?

"A Scenario for Strong Gravity in Particle Physics" is a theoretical framework that proposes the existence of extra dimensions and a new fundamental force, referred to as "strong gravity", in addition to the four known fundamental forces (gravity, electromagnetism, strong nuclear force, and weak nuclear force). This scenario aims to unify and explain some of the mysteries and problems in particle physics, such as the hierarchy problem and the unification of gravity with the other forces.

2. How does this scenario explain the hierarchy problem?

The hierarchy problem refers to the large difference in strength between the gravitational force and the other fundamental forces. "A Scenario for Strong Gravity in Particle Physics" proposes that the extra dimensions and strong gravity are responsible for this hierarchy. In this scenario, the extra dimensions are compactified at a very small scale, which leads to a larger value for the gravitational force compared to the other forces in our observable universe.

3. Is there any experimental evidence for this scenario?

Currently, there is no direct experimental evidence for the existence of extra dimensions or strong gravity. However, this scenario is supported by some indirect evidence, such as the existence of dark matter and the inability of the Standard Model of particle physics to explain certain phenomena.

4. How does strong gravity affect particle interactions?

Strong gravity is hypothesized to be a force that is stronger than the strong nuclear force, which is responsible for holding quarks together to form protons and neutrons. This strong gravity force would only be noticeable at very high energies and would have an impact on particle interactions at these scales.

5. Can this scenario be tested or proven?

There are ongoing efforts to test and verify the predictions of this scenario, such as through experiments at the Large Hadron Collider and other particle accelerators. However, it is still a theoretical framework and would require more evidence and experimental confirmation to be considered proven.

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