Particle physics (leptons)

Question 1

Can leptons interact with the strong nuclear force?

Answer 1

No, only particles made of quarks can.

Question 2

Give the properties (Q, B and lepton electron number) of an electron

Answer 2

Q = -1
B = 0
Lepton electron number = +1

Question 3

Give the properties (Q, B and lepton electron number) of a positron

Answer 3

Q = +1
B = 0
Lepton electron number = -1

Question 4

Give the properties (Q, B and lepton muon number) of a muon

Answer 4

Q = -1
B = 0
Lepton muon number = +1

Question 5

Give the properties (Q, B and lepton electron number) of an electron neutrino

Answer 5

Q = 0
B = 0
Lepton electron number = +1

Question 6

Give the properties (Q, B and lepton electron number) of an antielectron neutrino

Answer 6

Q = 0
B = 0
Lepton electron number = -1

Question 7

What does the greek word leptos mean?

Answer 7

Light and weak

Question 8

The independent lepton numbers must ____ on both sides of an equation

Answer 8

Balance (be conserved)