For the reaction p + p 3p + p, where one of the initialprotons is at rest, use relativistic formulas to show that thethreshold energy is 6mp c2, equal to three times the magnitudeof the Q-value of the reaction, where mp is the protonmass. [Hint Assume all final particles have the samevelocity.]

1/11/16 • Phy206–EverythingbutMechanicsandE&M • SpringSemester2016 • WilderAuditorium,PhysicsBuilding1:25or2:30 •