| 31. | The quarks, leptons and W boson all have antiparticles with opposite electric charge.
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| 32. | Each generation is divided into two types of leptons and two types of quarks.
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| 33. | There's no simple vertex for W-> leptons of different generations.
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| 34. | Lepton number conservation is not writen on stone.
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| 35. | Leptons are particles like electrons and neutrinos.
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| 36. | For pioneering experimental contributions to lepton physics.
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| 37. | They are distinguished from the neutrinos by having opposite signs of lepton number and chirality.
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| 38. | The lepton beam in HERA became naturally transversely polarised through the Sokolov-Ternov effect.
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| 39. | The source current looks like a matter fermion field associated with baryon and lepton number.
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| 40. | This term also allows for lepton number violating pion decays, and for proton decay.
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