Unit 4 Topic 3 - The Standard Model

Question 1

Define the concept of an elementary particle and antiparticle

Answer 1

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Question 2

Recall the six types of quarks

Answer 2

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Question 3

Define the terms baryon and meson

Answer 3

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Question 4

Recall the six types of leptons

Answer 4

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Question 5

Recall the four gauge bosons

Answer 5

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Question 6

Describe the strong nuclear, weak nuclear and electromagnetic forces in terms
of the gauge bosons

Answer 6

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Question 7

Contrast the fundamental forces experienced by quarks and leptons.

Answer 7

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Question 8

Define the concept of lepton number and baryon number

Answer 8

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Question 9

Recall the conservation of lepton number and baryon number in
particle interaction

Answer 9

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Question 10

Explain the following interactions of particles using Feynman diagrams
­ - electron and electron
­ - electron and positron
­ - a neutron decaying into a proton

Answer 10

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Question 11

Describe the significance of symmetry in particle interactions

Answer 11

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