A-level Physics (Advancing Physics)/Bosons/Worked Solutions

'''1. A stationary light source emits single photons at regular intervals. Draw a Feynman diagram to represent this.'''



2. Write two equations (including a W+ boson) which describe positron emission.

$$p \to n + W^{+}$$

$$W^{+} \to \nu + e^{+}$$

3. What is the charge on a W- boson?

-1.6 x 10−19C, since it has to balance the charge on a proton.