5 ms·
That depends on the energy of the neutrino, for lower energies there will be some momentum exchange, but since neutrinos are extremely light, this may be neglec
by lnauta 5y ago
That depends on the energy of the neutrino, for lower energies there will be some momentum exchange, but since neutrinos are extremely light, this may be neglected depending on your experimental setup.
At higher energies (>GeV) depending on the interaction type (whether a W-boson or a Z-boson is exchanged), a charged lepton comes out, which can be an electron, muon or tau (the tau decays very fast) and this is the same as the neutrino flavor. Or a hadronic shower if a nucleon is hit.
Of course it's always more complicated than that: for lower energies (sub-GeV) you get resonance scattering, where the nucleus will emit a meson (quark-anti-quark particle), or deep-inelastic scattering, where the nucleus is broken up and hadronic particles create a cascade of more particles.
Edit: see https://en.wikipedia.org/wiki/Particle_shower https://en.wikipedia.org/wiki/Particle_shower for more on these cascades. It's a bit bare-bone, I don't have a nice reference right now.
- hinkley 5y agoDo we calculate the weight of all neutrinos in the Known mass of the universe? Or is that part of Dark Matter? What is the mass of all the neutrinos in a cubic meter of “vacuum”?
- adrian_b 5y agoThe mass of the neutrinos is not known with any reasonable precision. It is known only that it is not likely to be zero (because the commonly accepted explanation for the so-called neutrino oscillations requires a non-null mass, even if there are alternative theories) and that it must be small because various experiments have determined some upper limits for the masses of the 3 kinds of neutrinos.