Why is the energy threshold for electronpositron pair production actually higher than the sum of their two

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Why is the energy threshold for electron–positron pair production actually higher than the sum of their two masses (1.022 MeV in energy terms)?

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College Physics

ISBN: 978-0321601834

7th edition

Authors: Jerry D. Wilson, Anthony J. Buffa, Bo Lou

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Question Posted: Aug 29, 2015 06:04 AM

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Why is the energy threshold for electronpositron pair production actually higher than the sum of their two

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Linear momentum needs to be conserved so the particles ...View the full answer

College Physics

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