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

Research output: Chapter in Book/Report/Conference proceedingConference 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 languageEnglish
Title of host publicationIRMMW-THz 2011 - 36th International Conference on Infrared, Millimeter, and Terahertz Waves
DOIs
Publication statusPublished - 2011
Externally publishedYes
Event36th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2011 - Houston, TX, United States
Duration: Oct 2 2011Oct 7 2011

Publication series

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

Other

Other36th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2011
Country/TerritoryUnited States
CityHouston, TX
Period10/2/1110/7/11

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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