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The first direct observation of positronium hyperfine splitting.
- Source :
-
AIP Conference Proceedings . 4/19/2012, Vol. 1441 Issue 1, p549-551. 3p. 2 Diagrams, 1 Graph. - Publication Year :
- 2012
-
Abstract
- The direct transition from ortho-positronium to para-positronium with high-power sub-THz radiation has been observed with 5.1 σ significance. The observed transition rate is consistent with the theoretical calculation. A sub-THz gyrotron is used as the light source, and a quasi-optical Fabry-Perot cavity is utilized to accumulate the radiation. This is the first observation of the positronium hyperfine splitting (Ps-HFS), which leads to the first direct measurement of Ps-HFS with a target accuracy of 100 ppm in several years. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 0094243X
- Volume :
- 1441
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- AIP Conference Proceedings
- Publication Type :
- Conference
- Accession number :
- 74464916
- Full Text :
- https://doi.org/10.1063/1.3700613