Decays of Positronium
Andrzej Czarnecki, Savely G. Karshenboim
TL;DR
This paper reviews theoretical and experimental findings on positronium decays, discusses the orthopositronium lifetime puzzle, and examines neutrino annihilation, highlighting discrepancies with earlier studies.
Contribution
It provides a comprehensive review of positronium decay results and addresses unresolved issues like the lifetime puzzle and neutrino annihilation discrepancies.
Findings
Discussion of solutions to the orthopositronium lifetime puzzle
Analysis of positronium decay modes into neutrinos
Identification of disagreements with previous neutrino annihilation results
Abstract
We briefly review the theoretical and experimental results concerning decays of positronium. Possible solutions of the "orthopositronium lifetime puzzle" are discussed. Positronium annihilation into neutrinos is examined and disagreement is found with previously published results.
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Taxonomy
TopicsMuon and positron interactions and applications · Quantum and Classical Electrodynamics · Atomic and Molecular Physics