+1 vote
in JEE by kratos

A positron–electron pair production can occur in the interaction of a gamma ray with electron, via γ + e− → e− + e+ + e−. Determine the threshold

1 Answer

+5 votes
by kratos
 
Best answer

Here m1 = 0, m2 = m, (m3 + m4) = 3m T1 = 4mc2

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