Relativistic Effects: Particle Accelerators & Speed of Light

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Discussion Overview

The discussion revolves around the relativistic effects in particle accelerators and the implications for the speed of light. Participants explore the limits imposed by relativity on particle speeds and energy, as well as the classification of particles based on their speed relative to light.

Discussion Character

  • Debate/contested
  • Technical explanation
  • Conceptual clarification

Main Points Raised

  • One participant questions whether the limit of speed in particle accelerators is indeed the speed of light, referencing a textbook on relativity.
  • Another participant emphasizes the need for clarity by requesting the original text from the textbook to better understand the claim.
  • It is noted that while there is a speed limit for tardyons (particles with speed less than the speed of light), theoretically, there is no limit to the energy that can be imparted to a particle by an accelerator.
  • A participant explains the classification of particles into three categories: tardyons, luxons, and tachyons, with a personal opinion expressed about the existence of tachyons being weakly supported.
  • Clarification is provided regarding the definition of luxons, correcting an earlier statement about their speed.

Areas of Agreement / Disagreement

Participants express differing views on the implications of relativistic effects in particle accelerators, and there is no consensus on the existence of tachyons or the interpretation of limits imposed by relativity.

Contextual Notes

Some statements rely on specific definitions of particle classes and the assumptions surrounding their behavior under relativistic conditions, which may not be universally accepted or understood.

pixel01
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In a textbook about relativity, I read that particle accelarators can get to a limit because of the relativistic effects. Is that not the limit of speed of light?

Thanks for any help.
 
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Please quote the original text for clarity. Thanks.
 
pixel01 said:
In a textbook about relativity, I read that particle accelarators can get to a limit because of the relativistic effects. Is that not the limit of speed of light?

Thanks for any help.

That would be the most obvious thing to assume, but as neutrino has pointed out, in this forum, before we can comment on what you think you read, we have to know exactly where you read it from. Just saying "I read somewhere" or "I heard this somewhere" is not good enough for this forum. I hope everyone, especially the newbies, is aware of this.

Zz.
 
pixel01 said:
In a textbook about relativity, I read that particle accelarators can get to a limit because of the relativistic effects. Is that not the limit of speed of light?

Thanks for any help.

Yes, there is a limit to the speed (with repspect to Earth) that an accelerator can impart to a particle, but, in principle (practice is a different story), there in no limit to the energy that an accelerator can impart to a particle.
 
pixel01 said:
In a textbook about relativity, I read that particle accelarators can get to a limit because of the relativistic effects. Is that not the limit of speed of light?

Thanks for any help.
The speed limit of tardyon's (defined as particles for which v < c at all times) is obviously yes. Tardyon's are things like electrons, protons, positrons, antiprotons, etc. The are two other classes of particles. One is a Luxon for which v = c at all times (e.g. a photon) while the last one is a Tachyon for which v > c at all times. Tachyon's have never been observed so for all we know they don't exist. I read the argument for their existence and found it weak to flawed myself. That is just my personal opinion. But I doubt many physicists believe in the existence of Tachyons. However if they did exist then they are born moving faster than light and at best one accelerates it to as high of a speed as one wishes or decelerates it to a lower bound of the speed of light.

Best regards

Pete
 
Last edited:
pmb_phy said:
The speed limit of tardyon's (defined as particles for which v < c at all times) is obviously yes. Tardyon's are things like electrons, protons, positrons, antiprotons, etc. The are two other classes of particles. One is a Luxon for which v = 0 at all times (e.g. a photon) while the last one is a Tachyon for which v > c at all times. Tachyon's have never been observed so for all we know they don't exist. I read the argument for their existence and found it weak to flawed myself. That is just my personal opinion. But I doubt many physicists believe in the existence of Tachyons. However if they did exist then they are born moving faster than light and at best one accelerates it to as high of a speed as one wishes or decelerates it to a lower bound of the speed of light.

Best regards

Pete

Did you mean, "One is a Luxon for which v = c at all times?"
 
RetardedBastard said:
Did you mean, "One is a Luxon for which v = c at all times?"
Yes! Thank you very much for pointing that out for me. I have gone back and corrected it now.

Thanks again! :smile:

Pete
 
pmb_phy said:
Yes! Thank you very much for pointing that out for me. I have gone back and corrected it now.

Thanks again! :smile:

Pete

You are welcome. :)
 

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