An electron and a positron anihilate with equal and opposite momenta and become two photons: e- +e- → 2 photons. Both the electron and the positron have mass me and momentum of magnitude mec. Explain why the electron and positron cannot annihilate to become a single (a) photon. (b) What are the magnitudes of the momenta of the photons?
An electron and a positron anihilate with equal and opposite momenta and become two photons: e- +e- → 2 photons. Both the electron and the positron have mass me and momentum of magnitude mec. Explain why the electron and positron cannot annihilate to become a single (a) photon. (b) What are the magnitudes of the momenta of the photons?
Modern Physics
3rd Edition
ISBN:9781111794378
Author:Raymond A. Serway, Clement J. Moses, Curt A. Moyer
Publisher:Raymond A. Serway, Clement J. Moses, Curt A. Moyer
Chapter3: The Quantum Theroy Of Light
Section: Chapter Questions
Problem 47P
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