Particle Accelerator Problem, proton -> electron positron

[btbam91]

Particle Accelerator Problem, proton --> electron positron

He guys, I could use some help on this problem.

[PLAIN]http://img31.imageshack.us/img31/2039/physhw.jpg


I got the energy of the photons:

E = 2hc/lambda

Energy of the electron and positron I believe are:

E = 2mc^2/sqrt(1 - (.9999995c/c)^2)

Where do I go from here?

 

[eczeno]

energy in equals energy out, my friend.