from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun Any of three electrically neutral leptons (the electron neutrino, muon neutrino and tau neutrino—one in each of the three generations of elementary fermions) that have small or very small masses.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun An
elementary particlethat is classified as a lepton, and has an extremely small but nonzero massand no electric charge. It interacts with the surroundings only via the weak forceor gravitation, making it very difficult to detect.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun an elementary particle with zero charge and zero mass
from The American Heritage® Dictionary of the English Language, 4th Edition
from Wiktionary, Creative Commons Attribution/Share-Alike License
This means e.g. that the electron and the neutrino belong to the same family of particles; the neutrino is the electron's little brother.
For example, a positively charged pion decaying to a positively charged muon and a muon neutrino is the mirror process of a negatively charged pion decaying to a negatively charged muon and a muon antineutrino.
The neutrino is an obscure particle with no electric charge and which only interacts with matter via the weak nuclear force.
The neutrino is an elementary particle, which was postulated in 1930 by Wolfgang
The simplest model that fits all the neutrino data implies that the mass of the electron neutrino is about 100 million times smaller than the mass of the electron.
The most common particle in the universe, the neutrino, is created in huge quantities during these reactions.
The neutrino is a participant in processes involving the
A neutrino is a sub-atomic particle that interacts weakly with matter and travels at a speed that is essentially the speed of light.
The neutrino is very reluctant to react with its environment.
This splendid theory lent great credibility to the hypothesis that the neutrino is created simultaneously with the electron every time a nucleus disintegrates through beta decay.