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slimjim
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Homework Statement
consider a pion decaying into 2 photons.
In the rest frame of the pion, the two photons must emerge back-to-back photons are equally likely to emerge in any direction.
determine the rest frame angular distribution of the emerging photons.
Homework Equations
ΔP=f(θ)Δθ is the probability that a photon emerges with polar
angle θ within some infinitesimal interval Δθ in the angle,
and f(θ) is the rest frame angular distribution.
The Attempt at a Solution
in the pion frame, the photons emerge back to back, and since there is no preferred decay direction, the probabilities of a photon emerging in any direction are the same.
so f(theta) is a constant?
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