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How can a neutrino or charm quark have a mass of less than zero?
Hricardojh
For now, no particle has a mass less than zero. The Electron Neutrino for example has a mass of 0.0000079 eV (Or something like that). And the Charm quark has a mass of 1.29 GeV. Maybe you mistook it with spin or charge?
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∙ 10y ago
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Does a neutrino have mass what is it made of?
Yes, it has a mass - though the mass is quite small. As far as I know, the neutrino has not been found to have smaller parts.
What has greater mass a muon or a quark?
The muon has a mass of 105.7 MeV/c2. You have to remember that there are six different types of quarks, eachwith a different mass. The up, down, and strange have a lower mass than the muon. The charm, bottom, and top have a greater mass.
What is the smallest part of the atom that has almost no mass?
The smallest part of an atom would be a quark. Quarks are either up or down quarks, and have virtually no mass. Neutrinos have even less mass, but are not part of an atom.
What is the smallest whole particle on this planet?
The smallest particle is the muon neutrino. The subatomic particles are not measured in size; they are measured in energy. The muon neutrino has an energy of less than 0.170 MeV/c2.
What is a particle of relatively negligible mass?
An electron, with relatively negligible mass meaning the mass of an electron is so insubstantial that it isn't counted towards the total weight of the atom.
What is a charm quark?
A charm quark is an elementary particle with an electrical charge of +2⁄3 e. It's a second generation up-type quark and has a mass of about 1.5 GeV/c2.
How do scientists know that the quark is the smallest unit of matter?
In the Standard Model, the quarks are not the smallest unit of matter. The leptons are, specifically the electron neutrino, Ve, with a mass of less than 2.2 eV.
Is there anything smaller than a neutrino?
Depends what you mean by "smaller." The mass of a photon is smaller than even that of a neutrino. At a sub-atomic level, concepts like "volume" or "size" become almost meaningless, so it is difficult to say whether the "size" of a neutrino is greater or less than that of, say, an electron.
Does a neutrino have mass what is it made of?
Yes, it has a mass - though the mass is quite small. As far as I know, the neutrino has not been found to have smaller parts.
What has greater mass a muon or a quark?
The muon has a mass of 105.7 MeV/c2. You have to remember that there are six different types of quarks, eachwith a different mass. The up, down, and strange have a lower mass than the muon. The charm, bottom, and top have a greater mass.
Are atoms the smallest particles of matter?
No. The smallest particle of matter appears to be the electron neutrino, with a mass somewhat less than 2.2 eV. Even the electron, at 511 eV, is massive, compared to the neutrino.
What subatomic particale has almost no mass?
It really depends on what you mean by "almost no mass".For example: for a long time, it was thought that neutrinos might be massless. We now know their mass is not exactly zero (and that the three kinds have different masses), but we still don't know exactly what the masses are, the best we can do is say "they have to be less than (some number)." This is complicated by the fact that neutrinos undergo something called "oscillation" where they change from one kind to another, so if we could measure the mass of a neutrino, we'd actually be measuring the mass of a superposition of eigenstates.Of the neutrinos, the electron neutrino has the lowest mass, with the muon neutrino being more massive and the tau neutrino being more massive still.Photons, gluons, and the hypothetical gravitons all have an invariant mass of precisely zero.The lightest confirmed particle that isn't a neutrino and doesn't have an invariant mass of zero is the electron. The electron is probably lighter than the tau neutrino, though for the reasons described above we can't really measure the tau neutrino's mass directly.All quarks ... which can't exist in an unbound state below extremely high energy densities ... are more massive than electrons, with up quarks being the lightest at somewhere around 5 times the mass of the electron. The top quark is the most massive fundamental particle known, with more mass than most atoms(it's slightly more massive than the average thulium atom).
Do muon neutrino posses mass?
unknown at this time
Does electron weigh more or less then proton and neutron?
Protons are made up of Subatomic Particles, in this case a Proton Atom is made up of two Up quarks, and one Down quark. The mass of an Up Quark is 2.4 MeV/c2 and the mass of a Down quark is 4.8 MeV/c2. Electrons are still in the Subatomic Particle Table, an Electron is a type of Lepton. An Electron's mass 0.511 MeV/c2 which is a lot less than a Proton, even less than a Up quark itself (the lightest quark). In most cases when talking about Atoms and their mass Electrons don't normally have an effect on their mass, only the Neutrons and Protons in the Atom. This should answer the Question.
What is the smallest part of the atom that has almost no mass?
The smallest part of an atom would be a quark. Quarks are either up or down quarks, and have virtually no mass. Neutrinos have even less mass, but are not part of an atom.
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!
What is faster than a neutrino?
A photon. Neutrinos have mass and therefore must travel at less than the speed of light. Photons of light travel at the speed of light.
