Does tachyon really exist?

Tachyons have never been found in experiments as real particles traveling through the vacuum, but we predict theoretically that tachyon-like objects exist as faster-than-light ‘quasiparticles’ moving through laser-like media. “We are beginning an experiment at Berkeley to detect tachyon-like quasiparticles.

Why does Cherenkov radiation occur?

The Cherenkov effect occurs when a particle carrying an electric charge travels through a transparent medium like water or air. If the particle travels faster than light in this medium, its passage causes a brief flash of light, a Cherenkov light.

What is Tachyon made of?

In the 1967 paper that coined the term, Gerald Feinberg proposed that tachyonic particles could be made from excitations of a quantum field with imaginary mass. However, it was soon realized that Feinberg’s model did not in fact allow for superluminal (faster-than-light) speeds.

Can we detect tachyons?

Tachyons would still have mass-energy, so in principle, they could be detected through their gravitational field. Beyond that, they might be detectable if they interacted nongravitationally with other forms of matter.

Why does Cherenkov radiation glow blue?

As Cherenkov radiation passes through the water, the charged particles travel faster than light can through that medium. So, the light you see has a higher frequency (or shorter wavelength) than the usual wavelength. Because there is more light with a short wavelength, the light appears blue.

How does Cherenkov radiation emit light?

What do tachyons do?

Tachyons are hypothetical particles that travel faster than the speed of light in a vacuum. In Einstein’s theory of special relativity, only massless particles like the photon travel at the speed of light; all other particles travel slower. The existence of tachyons can lead to “time travel” paradoxes.

What is Cherenkov radiation phenomenon?

In this report we introduced the Cherenkov radiation phenomenon followed by some qualitative explanations of the phenomenon origin. Using the conservation of momentum and energy the radiated photons and the direction of the Cherenkov radiation were derived for relativistic particles.

What is the signature of the Cherenkov effect?

The signature of the effect is a cone of emission in the direction of particle motion. Fig. 1 shows a schematic of the Cherenkov radiation showing the typical spherical wavefront and the resultant radiation. Fig. 2:The schematic of Cherenkov radiation for a particle moving at velocity u.

What are the different types of Cherenkov counters?

Cherenkov counters can be categorized to two main types: threshold and imaging counters. Based on the radiated angle equation, if the particle velocity exceeds 1/n, then photons would be generated.