Lepton
In physica de particulas, un lepton es un particula elementari (Fermion) de spin 1⁄2 non sensibile al interaction forte.
Lista
Properties of leptons Spin
JNomine del
particula o antiparticulaSymbolo Carga
Q (e)[note 1]Lepton flavor number Masse
(MeV/c2)Vita duration
(s)Le Lμ Lτ 1⁄2 Electron[1] e− −1 +1 0 0 0.510998910
(±13)Stable Positron[1] e+ +1 −1 Muon[2] μ− −1 0 +1 0 105.6583668
(±38)2.197019×10−6
(±21)Antimuon[2] μ+ +1 −1 Tau[3] τ− −1 0 0 +1 1776.84
(±.17)2.906×10−13
(±.010)Antitau[3] τ+ +1 −1 Neutrino electronic[4] 0 +1 0 0 <0.0000022[5] Unknown Antineutrino electronic −1 Neutrino muonic[4] 0 0 +1 0 < 0.17[5] Unknown Antineutrino muonic[4] −1 Neutrino tauic[4] 0 0 0 +1 < 15.5[5] Unknown Antineutrino tauic[4] −1
Masses de neutrinos son non nulle a causa del phenomeno de oscillation de neutrinos, ma illos son multe basse.
Notas e referentias
Notas
Referentias
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