(b) The proton has lepton number zero, the electron has electron lepton number 1, the anti-electron neutrino has electron lepton number -1, the muon neutrino has muon lepton number 1, and its antiparticle has muon lepton number -1. Explanation of muon lepton number All lepton numbers add up to zero after the decay, and they are zero before the decay, since the Xi-minus is a baryon. A lepton is a particle not affected by the strong nuclear forces, but is only subjected to the weak forces. The form of the muon number conservation law, however, is not determined by these considerations. Lepton number is just a mathematical expression of what it means to be a lepton. Mathematically, total lepton number L (the number of leptons minus the number of antileptons) is constant. protons have B= +1, anti-baryons e.g. Lepton number is a conserved quantity in fundamental particle physics.As would be expected, this quantity is associated with the class of elementary particles called leptons: the electron, muon, and tau particles, and their corresponding neutrinos. anti-protons have B= -1. The need for a muon number conservation law separate from lepton number conservation is mandated by the absence of neutrinoless muon-electron transitions. All of these particles have lepton number +1, and their antiparticles have lepton number -1. For decay (b), the muon-lepton number of the π − π − is 0, and the net muon-lepton number of the proposed decay products is 1 + 1 + (−1) = 1 1 + 1 + (−1) = 1. As such, electrons and neutrinos are leptons. A search was Lepton number. A lepton is an elementary, half-integer spin (spin 1⁄2) particle that does not undergo strong interactions.Particles that do participate in strong interactions are called hadrons.. However, the decay of the muon into an electron produces a distribution of electron energies, showing that it is at least a three-body decay. Looking for muon lepton number? A lepton number of 1 is assigned to both the electron and the neutrino and −1 to the antineutrino and the positron. In order for both electron lepton number and muon lepton number to be conserved, then the other particles must be an electron anti-neutrino and a muon neutrino. The quantum fields which correspond to the particles we call leptons (electron, muon, tau, and their corresponding neutrinos) each have a lepton number of 1, and the fields corresponding to their antiparticles each have a lepton number … The lepton number is a conserved quantum number in all particle reactions. The Mu2e and COMET collaborations will search for nucleus-catalyzed muon conversion to positrons (${\ensuremath{\mu}}^{\ensuremath{-}}\ensuremath{\rightarrow}{e}^{+}$) as a signal of lepton number violation. Lepton number before = Lepton number after - Baryon Number, B. Baryons e.g. Quarks have B = +1/3, anti-quarks have B = -1/3. In particle physics, the lepton number is used to denote which particles are leptons and which particles are not. Significance Lepton number is conserved in the first reaction, but not in the second. Thus, on the basis of the law of conservation of muon-lepton number, this decay cannot occur. What is Lepton Three generations of matter. In addition, a conservation law for leptons of each type seems to hold; the number of electrons and electron-neutrinos, for example, is conserved separately from the number of muons and muon … Lepton Number. Find out information about muon lepton number. Each lepton has a lepton number of 1 and each antilepton has a lepton number of -1.Other non-leptonic particles have a lepton number of 0.