Suppose that a tau neutrino and a tau antineutrino, both of which are just barely moving, encounter each other in space and completely annihilate to form two photons of equal energy. In view of the uncertainty about the mass of the tau neutrino (<18.2 MeV/c2), what is the shortest wavelength lamda0 of light that could be emitted by the annihilation? lamda0 = ? m Would the light be visible to the human eye?
Suppose that a tau neutrino and a tau antineutrino, both of which are just barely moving, encounter each other in space and completely annihilate to form two photons of equal energy. In view of the uncertainty about the mass of the tau neutrino (<18.2 MeV/c2), what is the shortest wavelength lamda0 of light that could be emitted by the annihilation? lamda0 = ? m Would the light be visible to the human eye?
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
Chapter15: Elementary Particles
Section: Chapter Questions
Problem 2P
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Suppose that a tau neutrino and a tau antineutrino, both of which are just barely moving, encounter each other in space and completely annihilate to form two photons of equal energy.
In view of the uncertainty about the mass of the tau neutrino (<18.2 MeV/c2), what is the shortest
lamda0 = ? m
Would the light be visible to the human eye?
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