All Questions
9 questions
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Neutrino oscillations imply neutrino mass — Does the usual argument really hold?
An argument that people put forth is that because neutrinos can undergo changes in lepton flavor midflight, they must "experience time." Since massless particles must travel at the speed of ...
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2
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1
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230
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Ultrarelativistic limit for neutrinos: Why is this approximation working?
In this section of the Wikipedia article on neutrino oscillations, a neutrino mass eigenstate $\left|\nu_i\right>$ is written as
$$\left|\nu_i(t)\right> = e^{-i(E_it-\vec p_i\cdot\vec{x})} \left|...
- 147
1
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1
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Vacuum Cherenkov Radiation
Hi I was reading this paper (Pair Creation Constrains Superluminal Neutrino Propagation) for an assignment and I came across the following question:
in the article, it is said that if we assume that ...
0
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1
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t=L in neutrino oscillation
What do we actually mean when we make the so called ultrarelativistic approximation and set the propagation time $T$ equal to the source-detector distance $L$? One would expect $vT=L$, where $v$ is ...
- 565
3
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1
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PDG review says "The flavour of a given neutrino is Lorentz invariant."
This the starting paragraph of section 14.1 PDG review (PDF) asserts:
The flavour of a given neutrino is Lorentz invariant.
What does this really mean? A neutrino of a given flavour $\alpha$, i.e.,...
- 27.2k
12
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2
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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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74
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2
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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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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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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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