The sub-THz direct spectroscopy of positronium hyperfine splitting

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

研究成果: ジャーナルへの寄稿会議記事査読

1 被引用数 (Scopus)


The positronium hyperfine splitting is a good target to study Quantum Electrodynamics in the bound state. There is a discrepancy between precision measurements and a theoretical calculation. We are planning to directly measure the positroinum hyperfine structure for the first time. A gyrotron oscillator is used as a novel radiation source in terahertz region. A Fabry-Pérot resonator is also developed to increase photon density. We have already observed the direct transition at 202.9 GHz. The direct measurement of the order of 100 ppm will be performed within about a year.

ジャーナルJournal of Physics: Conference Series
出版ステータス出版済み - 2013
イベント16th International Conference on Positron Annihilation, ICPA 2012 - Bristol, 英国
継続期間: 8月 19 20128月 24 2012

!!!All Science Journal Classification (ASJC) codes

  • 物理学および天文学一般


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