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Multi-photon decay mode spectroscopy of positronium

An approximation for the branching ratio of the four-photon decay of parapositronium (BR4γ) was measured using a multi-gamma-ray spectrometer. For the first time in such measurements, the spectrometer consisted of an array of eight identical LaBr3:Ce scintillator detectors, each of which combines go...

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Bibliographic Details
Main Author: Johnson, Storm
Other Authors: Leadbeater, Thomas
Format: Thesis
Language:English
Published: Department of Physics 2022
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