What is the angle between the two

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Reference no: EM132591804

An η meson decays into 2γ while moving in the x direction with energy Eη = 5 GeV.

(1) If the two γs are emitted in the +x and -x directions, what are their energies?

(2) If the two γs are emitted at equal and opposite angles ±θ with x, what is the angle between the two.

Reference no: EM132591804

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