Introduction to Classical Mechanics · Problem 12.30
4-vectors — Morin
Physics — Mechanics · collisions-decays
Problem
Maximum mass *
A photon and a mass m move directly toward each other. They collide head-on and create a new particle. If the total energy of the system is E, how should it be divided between the photon and the mass m so that the mass of the resulting particle is as large as possible?