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Worksheet: The Conservation of Lepton Number

Q1:

What is the lepton number of a mu neutrino?

Q2:

Which of the following particles have a lepton number of 1?

  • muon
  • antitauon
  • tau Neutrino
  • electron antineutrino
  • tauon
  • tau antineutrino
  • AAntitauon, tauon, and tau antineutrino
  • BMuon, electron antineutrino, and tauon
  • CAntitauon, tauon, and tau neutrino
  • DMuon, tauon, and tau neutrino
  • ETau neutrino, electron antineutrino, and tauon

Q3:

Which of the following particles have a lepton number of 1 ?

  • mu antineutrino
  • electron
  • positron
  • electron neutrino
  • mu neutrino
  • electron antineutrino
  • AElectron neutrino, mu neutrino, and electron antineutrino
  • BPositron, electron neutrino, and mu neutrino
  • CMu antineutrino, electron, and positron
  • DMu antineutrino, positron, and electron antineutrino
  • EPositron, electron neutrino, and electron

Q4:

What is the lepton number of an electron?

Q5:

What is the lepton number of an antitauon?

Q6:

What is the lepton number of an electron antineutrino?

Q7:

Which of the following particles have a lepton number of 0?

  • electron neutrino
  • tau antineutrino
  • electron antineutrino
  • proton
  • antimuon
  • antitauon
  • photon
  • tau neutrino
  • neutron
  • APhoton, tau neutrino, and neutron
  • BProton, antimuon, and antitauon
  • CTau antineutrino, electron antineutrino, and proton
  • DPhoton, proton, and neutron
  • EElectron antineutrino, proton, and antimuon