ISBN 978-6-3 Tipler, Paul Llewellyn, Ralph (2002). Having non-zero mass means neutrinos also have individual speeds hence their oscillation rates will differ as well, and at the relativistic speeds neutrinos are inferred to travel at, each neutrino has its own, individual relativistic "clock", and hence whether the oscillation is mostly determined by distance travelled (like radio waves) or mostly determined by time measured on each neutrino's individual clock, in its rest frame or something in between, any way it goes, the neutrino flavour oscillations must be at least somewhat erratic.Ĭompounding injury with insult, above and beyond the consequences of neutrino oscillation, any direct or indirect interaction of the neutrinos with the Higgs field will change the neutrinos' chirality, further erasing what little evidence they carried indicating their original flavour or their future flavour-based identity. That alone scrambles the original lepton numbers: Effectively, all the balance maintained throughout the weak interaction itself is "trashed" as soon as the neutrinos move away from their place of creation, and since neutrinos have distinct masses they cannot have one speed. Note the irony, that after all the meticulous bookkeeping of lepton numbers in every weak interaction, any neutrinos involved immediately begin to oscillate in flavour as they depart from the event. Mathematically, the lepton number L When this reversed-sign convention is observed, the baryon number is left unchanged, but the difference B − L is replaced with a sum: B + L, whose number value remains unchanged, since Lepton number is an additive quantum number, so its sum is preserved in interactions (as opposed to multiplicative quantum numbers such as parity, where the product is preserved instead). Is a conserved quantum number representing the difference between the number of leptons and the number of antileptons in an elementary particle reaction. In particle physics, lepton number (historically also called lepton charge)
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