- #1
Frank Einstein
- 170
- 1
Homework Statement
Hi everybody. I have to demostrate that a photon, no matter it's energy, will never be able to create a positron and an electron on it's own.
Homework Equations
E=Sqrt(m^2+p^2) as long as c=1
Conservation of energy Ei=Ef; initial energy is equal to final energy.
Conservation of momentum Pi=Pf; initial momentum is equal to final momentum
The Attempt at a Solution
This violates the conservation of momentum because if we go to the centre of mass, the photon will have momentum E; but in the same system, the total final momentum will be zero.
Is this enough to demostrate that the desintegration of a photon on its own in two particles is impossible?[/B]
Thanks for reading