< A-level Physics (Advancing Physics) < Bosons
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.
3. What is the charge on a W- boson?
-1.6 x 10−19C, since it has to balance the charge on a proton.
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