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Do neutrinos have mass

Updated: 8/17/2019
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13y ago

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Neutrinos have a miniscule, but non-zero mass. No one really knows what the exact mass is, but scientists predict it might be about 1.5 eV.

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Q: Do neutrinos have mass
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Related questions

Which atomic particle has no mass?

Photons and neutrinos dont have mass.


What are subatomic particles with no mass?

The photons and neutrinos are considered without mass although they have a very small mass.


Why do neutrinos rarely interact with normal matter?

Neutrinos have little mass and no charge, thus they have little interaction with heavier charged matter.


What particles the one with the least mass is the electron proton neutron or neutrino?

Neutrinos, but their mass is very, very small.


Can neutrinos change into other types of neutrinos?

Yes; the scienific terminology for this phenomenon is "neutrino oscillation". Neutrinos exist in three different flavours - electron, muon and tao neutrinos, listed in order of increasing mass (each also has an antiparticle). Although it is not know why this is the case, it was originally discovered that neutrinos oscillate when examining the neutrinos emitted by the sun; although primarily electron neutrinos are emitted as a result of the fusion process within the sun, the quantities of the different flavours of neutrinos detected on Earth from the sun are in roughly equal proportions.


What product of nuclear decay has mass but no charge?

Neutrons have no charge, but have mass. This is also true of neutrinos, though the mass is considered negligible for most purposes.


Why does mass number change from 211 to 207 after a decay?

because it releases energy, neutrons and neutrinos.


Why does the mass number change from 211 to 207 after a decay?

because it releases energy, neutrons and neutrinos.


How can neutrino oscillation explain the solar neutrino problem?

The solar neutrino problem relates to the discrepancy between the proportions of the different flavours of neutrinos emitted by the sun in the theoretical model as opposed to experimental measurements. Whilst the sun primarily emitts electron neutrinos, neutrino observatories such as SNO+ detected neutrinos in roughly equal proportions of the three flavours; furthermore the quantity of electron neutrinos detected was less than the theoretically predicted value. Both of these can be explained by neutrino oscillation - in which the neutrinos alter their mass to change their flavour (ie. an electron neutrinos gain mass to change to a muon neutrino). This would also explain the relative lack of electron neutrinos, thus solving the solar neutrino problem!


Are the potential benefits of understanding neutrinos worth such a large expense?

A neutrino is an electrically neutral, weakly interacting subatomic particle. All neutrinos have mass, but they are impossible to measure since they are so small.


What are the subatomic particles with no mass?

photonsgravitonsBoth are bosons, there are no massless fermions although neutrinos were once believed to be massless.


Why is a neutrino a candidate for dark matter?

Neutrinos are all but impossible to detect and it is thought that they may have mass. If they are found to have mass, they would be the epitome of dark matter.