- #1
e.chaniotakis
- 80
- 3
Hello!
The question refers to the supposed tachyons. Many experiments have been conducted based on cosmic ray studies with the following assumption:
" If particles with u>c exist then they should emit Cherenkov radiation in vacuum. Thus... Let's detect it!"
How can this argument stand?
Electrodynamics tells us that Cherenkov radiation is created when a particle travels through a medium with speed higher than the speed of light in the medium. The molecules of the medium are polarized and de-polarized resulting in the emission of photons. The u>c argument leads in coherence and the observed angular distribution of the radiation.
But the above need a medium ! Vacuum has no molecules, so ,theoretically, how could it emit?
Thank you
The question refers to the supposed tachyons. Many experiments have been conducted based on cosmic ray studies with the following assumption:
" If particles with u>c exist then they should emit Cherenkov radiation in vacuum. Thus... Let's detect it!"
How can this argument stand?
Electrodynamics tells us that Cherenkov radiation is created when a particle travels through a medium with speed higher than the speed of light in the medium. The molecules of the medium are polarized and de-polarized resulting in the emission of photons. The u>c argument leads in coherence and the observed angular distribution of the radiation.
But the above need a medium ! Vacuum has no molecules, so ,theoretically, how could it emit?
Thank you