Particle Physics Questions

Q3. The table gives information about some fundamental particles.

particle
quark
structure
charge
strangeness
baryon
number
u u d
0
Sigma +
u u s
+ 1
u
0
0


(a) Complete the table by filling in the missing information.

(7 marks)

(b) Each of the particles in the table has an antiparticle.

(i) Give one example of a baryon particle and its corresponding antiparticle.

(1 mark)

(ii) State the quark structure of an antibaryon.

(1 mark)

(iii) Give one property of an antiparticle that is the same for its corresponding particle and one property that is different.

(2 marks)

(Total 11 marks)