Is tau-neutrino of zero-mass? Then it does not oscillate.

[questfortruth]

My calculations show that tau-neutrino is massless. I see no reason to present in general public my complicated QM calculations because they will troll and bully my results. People are unjust trolls nowadays. So, to get the file, write to me: [email protected] They said, that Trump is the most advanced troll:

 

[Polymath257]

The Particle Data Group disagrees with you: http://pdg.lbl.gov/2019/tables/rpp2019-sum-leptons.pdf

 

[Heyo]

They said, that Trump is the most advanced troll:

That may be true but you also don't have to put your light under a bushel.

 

[questfortruth]

The Particle Data Group disagrees with you: http://pdg.lbl.gov/2019/tables/rpp2019-sum-leptons.pdf

I do not see it. Prove it.

 

[Polymath257]

I do not see it. Prove it.

Page 2. Under tau. It gives the mass as 1776.86+-.12 MeV

if you want details of the observations leading to this result, you will have to look at the data from the different particle accelerators which product tau particles.

Here's a bit more detail along with references to the research literature: http://pdg.lbl.gov/2019/listings/rpp2019-list-tau.pdf

 

[Polymath257]

Oops, sorry I read tau lepton, not the tau neutrino.

 

[Skwim]

Is tau-neutrino of zero-mass? Then it does not oscillate.

Right, but the fact is, it does oscillate.

The fact that neutrinos can oscillate is what tells researchers that they have mass—and that the flavors do not have the same masses. The differing masses cause the various neutrinos, which according to quantum mechanics can be thought of as both particles and waves, to travel with slightly different frequencies.
source​

My calculations show that tau-neutrino is massless. I see no reason to present in general public my complicated QM calculations because they will troll and bully my results.

Yeah sure.

.​

 

[questfortruth]

Oops, sorry I read tau lepton, not the tau neutrino.

Can you remind me what does it mean "neutrino mixing angle" theta_{23}. Can it act on how low the mass of tau-neutrino could be?

 

[questfortruth]

Right, but the fact is, it does oscillate.

The fact that neutrinos can oscillate is what tells researchers that they have mass—and that the flavors do not have the same masses. The differing masses cause the various neutrinos, which according to quantum mechanics can be thought of as both particles and waves, to travel with slightly different frequencies.
source​

Yeah sure.

.​

No, the tau-neutrino is massless; but e-neutrino, mu-neutrino have masses. Having no mass, the tau-neutrino does not oscillate.

 

[Polymath257]

At this point, we know that some neutrinos are massive, but it is still possible one is massless. Unfortunately, we don't even know which is the smallest mass as yet.

 

[questfortruth]

At this point, we know that some neutrinos are massive, but it is still possible one is massless. Unfortunately, we don't even know which is the smallest mass as yet.

In the file, I have found all three masses, because one mass is zero.

 

[Polymath257]

No, the tau-neutrino is massless; but e-neutrino, mu-neutrino have masses. Having no mass, the tau-neutrino does not oscillate.

Not quite true. What determines the rate of oscillation is the differences in the mass. So, even if the tau neutrino is massless, others are not, then it will show oscillation.

 

[Skwim]

No, the tau-neutrino is massless; but e-neutrino, mu-neutrino have masses. Having no mass, the tau-neutrino does not oscillate.

"There are many open questions about the neutrino masses, but scientists do know a few things. They know that the masses of the three neutrinos are small."
source
_______________________________

"The physics of the tau neutrino is becoming an experimentally accessible subject. The first evidence for direct observations of the tau neutrino by the DONUT experiment is an important milestone. The determined properties of the tau neutrino are consistent with those of the other neutrinos -νe, νμ, ντ. Finally, neutrino oscillations opens up a variety of new future possibilities for nt in cosmology, astrophysics and future accelerators."
source
_______________________________

"Theory does not require the mass of neutrinos to be any specific amount, and in the past it was assumed to be zero. Observations of the cosmic microwave background and gravitational lensing of distant galaxies indicate the three flavours of neutrino have a combined mass of 0.32 eV, or less than 1/100,000,000 the mass of an electron."
source
_______________________________

"The 2015 physics Nobel honored leaders of two experiments "for the discovery of neutrino oscillations, which shows that neutrinos have mass."

Born in certain nuclear interactions and nearly massless, neutrinos barely flirt with ordinary matter. They come in three types or "flavors"—electron, muon, and tau—and, weirdly, can change from one type into another, so that an electron neutrino can change into a muon neutrino and back again. Such back-and-forth "neutrino oscillations" prove that neutrinos have mass."
source​

Hey, this is fun. I learned that all neutrinos, tau neutrinos included, have mass and oscillate. for me.


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[Polymath257]

Can you remind me what does it mean "neutrino mixing angle" theta_{23}. Can it act on how low the mass of tau-neutrino could be?

http://pdg.lbl.gov/2019/reviews/rpp2018-rev-neutrino-mixing.pdf

The problem is that the mass eigenstates for neutrinos are not the same as the lepton eigenstates. In essence, this means that any neutrino is an entangled state between the different masses. The mass eigenstates are usually written 1,2,3 and the lepton eigenstates as e, mu, tau. Because of this, it isn't even quite right to talk about the mass of any of the individual lepton neutrinos (as opposed to the mass eigenstates).

So, in the matrix of 14.6 in the link above, the third line describes how much of the 1,2,3 mass eigenstates contribute to the tau lepton. All three components of this are affected by the angle theta_23. In essence, theta_23 compares the amount of mass eigenstate 3 in the electron versus the tau neutrinos.

The mass eigenstates do NOT oscillate, but since they have different masses, combinations of them will (with frequency determined by the masses), so ALL of the lepton states oscillate (yes, even the tau neutrino).

 

[questfortruth]

Not quite true. What determines the rate of oscillation is the differences in the mass. So, even if the tau neutrino is massless, others are not, then it will show oscillation.

If tau-neutrino has zero mass, then it can not go into a different kind of neutrino. Why? Because of the Special Theory of Relativity.

 

[questfortruth]

Hey, this is fun. I learned that all neutrinos, tau neutrinos included, have mass and oscillate. for me.
.

No, there is no such information.

 

[Skwim]

No, there is no such information.

​

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