KEK素粒子原子核研究所 理論セミナー ( 仁尾 真紀子 氏 )
講演タイトル: | [EX] On determination of the fine-structure constant: Electron g-2 and Atomic interferometers |
言語: | (英語/in English) |
講演者: | 仁尾 真紀子氏 ( 理研 ) |
日時: | 2020/12/9 (水) 15:30-16:30 |
場所: | オンライン (zoom) |
(Abstract)
Any precision tests of the elementary particles are carried out on the assumption that the fine-structure constant alpha is sufficiently known.
Currently, there are two methods that provide equally accurate values of the alpha. One is the electron g-2 measurement together with its theoretical prediction from the QED theory. The other is the quotient of the Planck constant and the atomic mass (h/M) determined by using an atomic interferometer. I will report recent progress in both determination of the alpha including our own work on the five-loop QED calculation of the electron g-2.
開始日時 | 2020/12/09 15:30 |
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終了日時 | 2020/12/09 16:30 |
講演者 | 仁尾 真紀子氏 ( 理研 ) |
会場 | オンライン (zoom) |
連絡先 | --- |
言語 | English |
ウェブサイト |
概要
Any precision tests of the elementary particles are carried out on the assumption that the fine-structure constant alpha is sufficiently known.
Currently, there are two methods that provide equally accurate values of the alpha. One is the electron g-2 measurement together with its theoretical prediction from the QED theory. The other is the quotient of the Planck constant and the atomic mass (h/M) determined by using an atomic interferometer. I will report recent progress in both determination of the alpha including our own work on the five-loop QED calculation of the electron g-2.