All Questions
Tagged with faster-than-light neutrinos
28
questions
0
votes
1
answer
531
views
Why is the square of the neutrino mass negative?
Why is the square of the neutrino mass negative?
In arXiv:hep-ph/0009291 this is explained by giving the example of:
$$m^2_{\nu_e}= -2.5 \pm 3.3 \text{eV}^2 \tag{1}$$
"Thee negative value of the ...
- 753
40
votes
3
answers
11k
views
Why do the neutrinos (with mass) from a supernova arrive before the light (no mass)?
I've already read the below questions (and their answers) regarding neutrinos vs. electromagnetic waves propagating through space, but I'm still not clear on something.
Neutrinos arrived before the ...
- 1,857
0
votes
2
answers
211
views
Do neutrinos travel faster than light? [duplicate]
There are particles like tachyon which moves faster than light theoretically,does this holds good enough for neutrinos?
- 23
-1
votes
3
answers
256
views
Is it possible to go faster than the speed of light in vacuum?
If it is possible for particles to go faster than the speed of light in certain events, would it be possible to create a situation in which the barrier of the speed of light can be crossed?
- 11
3
votes
2
answers
1k
views
Does the uncertainty principle imply the existence of particles that exceed the speed of light?
The uncertainty principle allows for the creation of virtual particles (with non-zero mass) that exist for very short durations. This allows empty space to have particle pairs that pop into existence ...
19
votes
1
answer
6k
views
Physics behind this neutrino-related joke
In the comment section of a newspaper article reporting on the 2015 Nobel Prize for Physics, which was awarded for work on neutrino oscillation, I found the following joke:
"I'm sorry, we do not ...
user55611
3
votes
0
answers
160
views
What're some criticisms of the paper "Six observations consistent with the electron neutrino being a tachyon with mass: mνe² = −0.11±0.016 eV²"?
Today I read about this paper making the case that neutrinos have imaginary mass and travel faster than light. I want to get excited, but I have no way to know how likely it is that this paper will be ...
- 172
0
votes
0
answers
44
views
Can neutrinos really travel faster than the speed of light? [duplicate]
A few years ago scientists found that neutrinos were going faster than the speed of light. Then they found some problem with the calculations. I read an article that was made this year about faster ...
- 1,660
1
vote
1
answer
130
views
Distance and time measurement in the famous Superluminal Neutrinos Experiment
I tried to understand the technical aspects of the OPERA/CERN experiment, but apparently it takes some professional experience. Therefore I would like to ask someone better acquainted with such ...
- 1,585
0
votes
1
answer
317
views
Concerning a previous possible tachyon observation? [duplicate]
A few years ago there was a story about the Large Hadron Collider where a possible tachyon was supposedly observed. It was later shown it didn't occur yet the incident made me think. If a large ...
- 379
56
votes
2
answers
6k
views
Neutrinos vs. Photons: Who wins the race across the galaxy?
Inspired by the wording of this answer, a thought occurred to me. If a photon and a neutrino were to race along a significant stretch of our actual galaxy, which would win the race?
Now, neutrinos ...
user10851
9
votes
3
answers
2k
views
How can neutrinos "beat light"?
Article in the CERN newsletter "symmetry breaking" has the following statement:
"Neutrinos are often the first particles to bring news of events in space to Earth, beating even light.". What does this ...
- 1,484
2
votes
1
answer
444
views
How 'Faster Than Light' Neutrino Was Product of Loose Cable at CERN?
A "faster than light" neutrino discovery was actually the result of a loose cable.
A fiber-optic cable in a GPS receiver at the European Center for Particle Physics ( CERN) near Geneva
Can someone ...
- 1,025
-1
votes
2
answers
348
views
When Physicists thought neutrinos were faster than the speed of light [duplicate]
Possible Duplicate:
Superluminal neutrinos
I remember not too long ago hearing very much speculation about a discovery that perhaps neutrinos are faster than the speed of light.
I've heard ...
- 4,607
2
votes
1
answer
252
views
Light vs neutrino speed comparison in a real tunnel
Given current accuracy of the techniques, is it possible to identify a real, existing tunnel (stright I think) to make the direct comparison of the speed of light and of neutrinos?
The hypotetical ...
- 1,436