Why an isolated photon cannot undergo pair production in empty space

Published: 03 July 2021
on channel: The Pentamollis Project
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In this video we figure out why pair production is not possible in empty space for a single photon, that is, an isolated photon cannot produce and electron and positron pair. Another massive body that can interact with the system is required to trigger this process. Thus, pair production usually occurs in the electromagnetic field of a nucleus.


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