All Questions
Tagged with neutrinos special-relativity
11 questions
74
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Where are all the slow neutrinos?
The conventional way physicists describe neutrinos is that they have a very small amount of mass which entails they are traveling close to the speed of light. Here's a Wikipedia quote which is also ...
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What would be the effects on theoretical physics if neutrinos go faster than light?
Earlier today, I saw this link on Facebook about neutrinos going faster than the speed of light, and of course, re-posted. Since then, a couple of my friends have gotten into a discussion about what ...
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3
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If it turns out that neutrinos do travel at faster than lightspeed, how will the success of special relativity be explained?
As per in the title. If it turns out that neutrinos do travel faster than the speed of light, how will the success of special relativity be explained? My apologies if this has been asked before; I've ...
21
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What happened to the idea of tachyonic or other superluminal neutrinos?
While hunting around for information about the recent OPERA measurement that hints at superluminal neutrinos, I discovered that this idea was actually considered back in the 1980s. Wikipedia lists as ...
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Is it possible that all "spontaneous nuclear decay" is actually "slow neutrino" induced?
This thought was inspired by a comment from the current leading answer, by @Sentry, to the question Where are all the slow neutrinos?
This [slow-neutrino induced nuclear decay] will still be an ...
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A thought experiment about neutrinos
I don't understand all the details of Dirac mass, Majorana mass, and many other "deep" notions.
I have in mind a very simple thought experiment.
Because of neutrino oscillations we know ...
- 4,448
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3
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If a neutrino has a rest frame, why can't a photon have a rest frame as well?
Concerning Rest Frame Wikipedia states:
For example, in the rest frame of a neutrino particle travelling from the Crab Nebula supernova to Earth the supernova occurred in the 11th Century AD only ...
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A neutrino has rest-mass and travels at (near) $c$, why isn't its mass/ energy (nearly) infinite?
If the total energy of all three types of neutrinos exceeded an
average of 50 eV per neutrino, there would be so much mass in the
universe that it would collapse. This limit can be circumvented by
...
user59485
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1
answer
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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
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1
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Is Helicity an intrinsic property of massive Neutrinos?
Hyperphysics states that, unlike an electron, the helicity of a neutrino is invariant because we cannot change to a reference frame where it is different:
This and subsequent experiments have ...
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Do we have any evidence of slower-than-light neutrinos? [duplicate]
I'm writing a piece on the electron neutrino. There's plenty of excellent material out there, but I'm struggling to find anything definitive about their speed. There is for example evidence from ...
- 11.3k