| Co-Investigator(Kenkyū-buntansha) |
一戸 悠人 立教大学, 理学部, 助教 (30792519)
山田 真也 立教大学, 理学部, 准教授 (40612073)
渡辺 伸 国立研究開発法人宇宙航空研究開発機構, 宇宙科学研究所, 准教授 (60446599)
馬場 彩 東京大学, 大学院理学系研究科(理学部), 准教授 (70392082)
井上 芳幸 大阪大学, 大学院理学研究科, 准教授 (70733989)
池戸 豊 大学共同利用機関法人高エネルギー加速器研究機構, 物質構造科学研究所, 先任技師 (90415050)
岡田 信二 国立研究開発法人理化学研究所, 開拓研究本部, 協力研究員 (70391901)
|
|---|
| Budget Amount *help |
¥174,330,000 (Direct Cost: ¥134,100,000、Indirect Cost: ¥40,230,000)
Fiscal Year 2022: ¥24,440,000 (Direct Cost: ¥18,800,000、Indirect Cost: ¥5,640,000)
Fiscal Year 2021: ¥44,720,000 (Direct Cost: ¥34,400,000、Indirect Cost: ¥10,320,000)
Fiscal Year 2020: ¥53,300,000 (Direct Cost: ¥41,000,000、Indirect Cost: ¥12,300,000)
Fiscal Year 2019: ¥31,070,000 (Direct Cost: ¥23,900,000、Indirect Cost: ¥7,170,000)
Fiscal Year 2018: ¥20,800,000 (Direct Cost: ¥16,000,000、Indirect Cost: ¥4,800,000)
|
|---|
| Outline of Final Research Achievements |
As a new approach to verify quantum electrodynamics (QED) effects under strong electric fields, we aimed for high-precision measurements of muonic characteristic X-rays emitted from muonic atoms isolated in a vacuum. Using slow negative muons supplied at J-PARC and superconducting TES-type X-ray calorimeters, we have successfully observed the QED effect appearing in the energy levels of the muonic X-rays emitted from muonic Ne atoms. High-precision measurements of emitted electronic characteristic X-rays have also demonstrated their applicability to studying dynamics in the femtosecond time-domain and spectroscopy of exotic few-quantum many-body systems composed of bound electrons, muons, and nuclei. In addition, we succeeded for the first time in directly observing muon molecules via vibrational structures appearing in muonic X-rays.
|
