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Particle Questions that include Feynman Diagrams

Q4.

(a)

(i) How many quarks are there in a baryon?

(ii) Hadrons fall into two groups, baryons being one of them. What name is given to the other group of hadrons?

(iii) What distinguishes hadrons from other particles?

(3 marks)

(b)

(i) Give the name of one antiparticle that is also a lepton.

(ii) What distinguishes leptons from other particles?

(2 marks)

(c) A neutron decays by the weak interaction. Complete the equation.

 

(2 marks)

(d) The Feynman diagram representing electron capture is given below. Complete the labelling of the diagram.

(3 marks)

(Total 10 marks)