Direct measurement of positronium hyperfine splitting - Testing fundamental physics with sub-THz gyrotron

A. Miyazaki; T. Yamazaki; T. Suehara; T. Namba; S. Asai; T. Kobayashi; H. Saito; T. Idehara; I. Ogawa; S. Sabchevski

doi:10.1109/irmmw-THz.2011.6104758

Direct measurement of positronium hyperfine splitting - Testing fundamental physics with sub-THz gyrotron

A. Miyazaki, T. Yamazaki, T. Suehara, T. Namba, S. Asai, T. Kobayashi, H. Saito, T. Idehara, I. Ogawa, S. Sabchevski

SCI - Physics

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

3 Citations (Scopus)

Abstract

The direct transition from o-Ps to p-Ps was firstly observed, using a gyrotron, a mode-converter and a Fabry-Pérot cavity. The Einstein's A coefficient is measured as 3.9 (+1.8 -1.7)·10 ^-8 s ^-1. It is the first step to directly examine a reported discrepancy of positronium hyperfine splitting.

Original language	English
Title of host publication	IRMMW-THz 2011 - 36th International Conference on Infrared, Millimeter, and Terahertz Waves
DOIs	https://doi.org/10.1109/irmmw-THz.2011.6104758
Publication status	Published - 2011
Event	36th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2011 - Houston, TX, United States Duration: 2011 Oct 2 → 2011 Oct 7

Publication series

Name	IRMMW-THz 2011 - 36th International Conference on Infrared, Millimeter, and Terahertz Waves

Other

Other	36th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2011
Country	United States
City	Houston, TX
Period	11/10/2 → 11/10/7

ASJC Scopus subject areas

Electrical and Electronic Engineering

Access to Document

10.1109/irmmw-THz.2011.6104758

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Miyazaki, A., Yamazaki, T., Suehara, T., Namba, T., Asai, S., Kobayashi, T., Saito, H., Idehara, T., Ogawa, I., & Sabchevski, S. (2011). Direct measurement of positronium hyperfine splitting - Testing fundamental physics with sub-THz gyrotron. In IRMMW-THz 2011 - 36th International Conference on Infrared, Millimeter, and Terahertz Waves [6104758] (IRMMW-THz 2011 - 36th International Conference on Infrared, Millimeter, and Terahertz Waves). https://doi.org/10.1109/irmmw-THz.2011.6104758

Direct measurement of positronium hyperfine splitting - Testing fundamental physics with sub-THz gyrotron. / Miyazaki, A.; Yamazaki, T.; Suehara, T.; Namba, T.; Asai, S.; Kobayashi, T.; Saito, H.; Idehara, T.; Ogawa, I.; Sabchevski, S.

IRMMW-THz 2011 - 36th International Conference on Infrared, Millimeter, and Terahertz Waves. 2011. 6104758 (IRMMW-THz 2011 - 36th International Conference on Infrared, Millimeter, and Terahertz Waves).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Miyazaki, A, Yamazaki, T, Suehara, T, Namba, T, Asai, S, Kobayashi, T, Saito, H, Idehara, T, Ogawa, I & Sabchevski, S 2011, Direct measurement of positronium hyperfine splitting - Testing fundamental physics with sub-THz gyrotron. in IRMMW-THz 2011 - 36th International Conference on Infrared, Millimeter, and Terahertz Waves., 6104758, IRMMW-THz 2011 - 36th International Conference on Infrared, Millimeter, and Terahertz Waves, 36th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2011, Houston, TX, United States, 11/10/2. https://doi.org/10.1109/irmmw-THz.2011.6104758

Miyazaki A, Yamazaki T, Suehara T, Namba T, Asai S, Kobayashi T et al. Direct measurement of positronium hyperfine splitting - Testing fundamental physics with sub-THz gyrotron. In IRMMW-THz 2011 - 36th International Conference on Infrared, Millimeter, and Terahertz Waves. 2011. 6104758. (IRMMW-THz 2011 - 36th International Conference on Infrared, Millimeter, and Terahertz Waves). https://doi.org/10.1109/irmmw-THz.2011.6104758

Miyazaki, A. ; Yamazaki, T. ; Suehara, T. ; Namba, T. ; Asai, S. ; Kobayashi, T. ; Saito, H. ; Idehara, T. ; Ogawa, I. ; Sabchevski, S. / Direct measurement of positronium hyperfine splitting - Testing fundamental physics with sub-THz gyrotron. IRMMW-THz 2011 - 36th International Conference on Infrared, Millimeter, and Terahertz Waves. 2011. (IRMMW-THz 2011 - 36th International Conference on Infrared, Millimeter, and Terahertz Waves).

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AU - Suehara, T.

AU - Namba, T.

AU - Asai, S.

AU - Kobayashi, T.

AU - Saito, H.

AU - Idehara, T.

AU - Ogawa, I.

AU - Sabchevski, S.

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