For a typical nuclear reactor with thermal power of 3000 MW th(~1000MW e of electrical power), the total power produced is higher, approximately 3150 MW, of which 150 MW is radiated away into space antineutrino radiation. Roughly about 5%В (or about 12 MeV of 207 MeV) of released energy per one fissionВ is radiated away from the reactor in the form of antineutrinos. The existence of emission of antineutrinos and their very low cross-sectionВ for any interaction leads to a very interesting phenomenon. An unstable fission fragment with the excess of neutrons undergoes ОІ в€’В decay, where the neutron is converted into a proton, an electron, and an electron antineutrino. A nuclear reactor occurs especially the ОІ в€’decay because the common feature of the fission fragmentsВ is an excess of neutronsВ (see Nuclear Stability). This is because antineutrinos are produced in negative beta decay. Nuclear reactors are the major source of human-generated antineutrinos. Together with the tauon, it forms the third generation of leptons, hence the name tau neutrino. It has no net electric charge and a spin of ВЅ. The tau neutrino is a subatomic lepton elementary particle which has the symbol ОЅ П„.

Together with the muon, it forms the second generation of leptons, hence the name muon neutrino.

The muon neutrino is a subatomic lepton elementary particle that has the symbol ОЅ Ој. Together with the electron, it forms the first generation of leptons, hence the name electron neutrino. The electron neutrino is a subatomic lepton elementary particle that has the symbol ОЅ e. Neutrinos are weakly interacting subatomic particles with ВЅ units of spin. A neutrino is an elementary subatomic particle with infinitesimal mass (less than 0.3 eV.?) and no electric charge.

Neutral leptons (better known as neutrinos) are electrically neutral particles that rarely interact with anything and are consequently rarely observed.

Tau leptons have a lifetime of 2.9Г—10 в€’13 s. Taus is approximately 3,700 times more massive than electrons. The tau (П„), also called the tau lepton, tau particle, or tauon, is an elementary particle similar to the electron, with an electric charge of в€’1 e and a spin of ВЅ. The muon is an unstable subatomic particle with a mean lifetime of 2.2 Вµs. Muons are heavier, having more than 200 times as much mass as electrons. The muon is an elementary particle similar to the electron, with an electric charge of в€’1 e and a spin of ВЅ. The electron is only one member of a class of elementary particles, which forms an atom. Electrons are located in an electron cloud, which is the area surrounding the nucleus of the atom. The electron is a negatively charged particle with a mass that is approximately 1/1836 that of the proton. Charged leptons can combine with other particles to form various composite particles such as atoms and positronium. Three generations of matter.ДЄny of the six elementary particles that (with their antiparticles) are not quarks are leptons. This fact has key implications for the building up of the periodic table of elements. All leptons are fermions, i.e., leptons are spin-вЂЉ1вЃ„2 particles, and thus that they are subject to the Pauli exclusion principle. Leptons are said to be elementary particles they do not appear to be smaller units of matter.

There are six leptons in the present structure, the electron, muon, and tau particles and their associated neutrinos. Particles that do participate in strong interactions are called hadrons. A lepton is an elementary, half-integer spin (spin 1вЃ„2) particle that does not undergo strong interactions.

Lepton table