Twenty-Year Anniversary of the Orthopositronium Lifetime Anomalies: The Puzzle Remains Unresolved (A Letter by the Editor-In-Chief)

By Progress in Physics

Release Date: 2007-04-01
Genre: Physics

Description

This letter gives a history of two observed anomalies of orthopositronium annihilation, of which the 20th anniversary occurs this year. The anomalies, breaking the basics of Quantum Electrodynamics, require more experimental study, in view of the recent claim of the Michigan group of experimentalists, which alleges resolution of one of the anomalies. **********

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