November 28, 2015

Homework Help: relativity

Posted by walter on Tuesday, June 7, 2011 at 2:30pm.

A particle called neutral pi meson (or pion) decays into two photons (and nothing else).If the pion (whose rest mass is 135Mev) is initially at rest,

What are the energies of the photons?

How are they moving with respect to each other ?

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