A neutral pion of rest mass
m
π
decays into two photons. In the laboratory frame, t
he pion is moving
with momentum
¾
m
π
c
. Photon #1 is emitted in the same direction as the original pion while photon #2
emerges in the opposite direction. Find the energy of each photon in the laboratory frame, expressing
your answer in terms of
m
π
and ph
ysical constants.