5. Strange Particles and Conservation of Properties

Question 1

What are strange particles?

Answer 1

Particles that have a property of strangeness

Question 2

How are strange particles created?

Answer 2

Via the strong interaction, where strangeness is conserved

Question 3

What is strangeness?

Answer 3

A quantum number

Question 4

What is the strangeness of leptons?

Answer 4

S = 0

Question 5

How are strange particles decayed?

Answer 5

Through the weak interaction, but strangeness is not conserved…

Question 6

Why can strange particles only be created in pairs?

Answer 6

Because of the conservation of strangeness

Question 7

What is conserved in all particle interactions?

Answer 7

Energy and momentum

Question 8

What happens to the charge in a particle interaction?

Answer 8

Total charge after interaction = total charge before interaction

Question 9

What happens to the baryon number in a particle interaction?

Answer 9

Baryon number after interaction = baryon number before interaction

Question 10

What must happen to the lepton numbers in a particle interaction that does exist?

Answer 10

The electron lepton number and the muon lepton number both need to be the same before and after the interaction

Question 11

When is strangeness conserved?

Answer 11

In strong interactions