Aspects of the forces

Question 1

What are the aspects of the EM force?

Answer 1

Boson: photon
zero rest mass
zero electric charge
very lonely
Conserves all quantum numbers

Question 2

What are the aspects of the weak force?

Answer 2

1. Charged current
   Boson: W+/W-
   Electrically charged
   Weak isospin
   Mass of 80GeV/c^2
   only force that can change flavour
   Couples states of weak isospin

Question 3

What are the aspects of the weak force-2?

Answer 3

2. Neutral current interaction
   Boson: z_0
   Neutrally charged
   Mass of 90GeV/c^2
   Cannot change flavour

Question 4

What are the aspects of the strong force?

Answer 4

Boson: gluon
zero rest mass
technically infinite range
Carry colour themselves a colour and an anti colour but not of the same colour

Question 5

How many types of gluon are there?

Answer 5

8 as there is no colourless gluon