The Quenching of Ortho-Positronium in Helium
Journal Article
·
· Proceedings of the Royal Society. A. Mathematical, Physical and Engineering Sciences
The lifetime of ortho-positronium is measured in helium at high pressures, yielding a mean quenching rate per atmosphere of 0.0123 Λ 0 . ( Λ 0 is the natural annihilation rate of ortho-positronium.) This small quenching rate can be explained qualitatively by a pick-off process, in which the positron of the positronium atom annihilates with an electron in the helium atom during a collision. Lifetimes are also measured in argon at a range of pressures and in freon at subatmospheric pressures.
- Research Organization:
- University Coll., London
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-17-006882
- OSTI ID:
- 4749379
- Journal Information:
- Proceedings of the Royal Society. A. Mathematical, Physical and Engineering Sciences, Journal Name: Proceedings of the Royal Society. A. Mathematical, Physical and Engineering Sciences Journal Issue: 1343 Vol. 270; ISSN 1364-5021
- Publisher:
- The Royal Society Publishing
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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