Why Tachyons Aren't Allowed in Physics Theory

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SUMMARY

Tachyons are hypothetical particles that travel faster than light, and their existence is not supported by current physical theories, primarily due to the implications they have on causality and the inability to detect them. The Standard Model of particle physics does not accommodate tachyons, as their existence would lead to paradoxes and inconsistencies within established frameworks. While some physicists consider the possibility of tachyons as an open question, the consensus remains that they do not exist within our observable universe due to the lack of empirical evidence and the challenges in detection.

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  • Understanding of the Standard Model of particle physics
  • Familiarity with concepts of causality in physics
  • Knowledge of particle detection methods in high-energy physics
  • Basic grasp of special relativity and its implications
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  • Research the implications of faster-than-light particles on causality
  • Explore the limitations of the Standard Model regarding hypothetical particles
  • Investigate current experimental methods in particle physics for detecting new particles
  • Study theoretical frameworks that allow for the existence of tachyons
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Physicists, students of theoretical physics, and anyone interested in the implications of faster-than-light travel and its impact on established physical theories.

zetafunction
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Why NO tachyons ??

my question is why are Tachyons NOT allowed to exists in physical theories ??

they would be particles with speed faster than light.. is this the main reason ?? could be they detected someday in accelerators, how does Standard model of particles interact with Tachyons.
 
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Who said there were no tachyons? As far as I know the existence of tachyons is an open question. The difficulty appears to be that if there were tachyons, we would have no way of detecting them. And some people assert that, for that reason, as far as our "universe" is concerned, they don't exist.
 


HallsofIvy said:
The difficulty appears to be that if there were tachyons, we would have no way of detecting them.
Why?
 

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