| Project/Area Number |
24740279
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Atomic/Molecular/Quantum electronics
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| Research Institution | Osaka University |
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Principal Investigator |
NINOMIYA KAZUHIKO 大阪大学, 理学(系)研究科(研究院), 助教 (90512905)
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2013: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2012: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
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| Keywords | ミュオン / ミュオン原子 / 量子ビーム / ミュオン捕獲過程 / ミュオン特性Ｘ線 / エキゾチック原子 / Ｊ－ＰＡＲＣ / ミュオン初期状態 |
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| Research Abstract |
In this study, muon irradiations for low-pressure gaseous samples (CO, CO2 and COS) have been performed at the muon science facility (MUSE) in J-PARC. The muon capture probabilities for C and O atoms and the initial quantum level (principle and angular momentum quantum numbers) of captured muons were quantitatively investigated for these molecules. From this work, we found that the muon capture probability for C atom in CO molecule was clearly higher than that in CO2 and COS molecules. We also found that the initial quantum level of muon captured in C atom for CO molecule was different from that for CO2 and COS molecules. We concluded that the difference in muon capture process in C atom among these molecules are caused by lone-pair electrons at C atom in CO molecule, and we firstly investigated the initial quantum levels of captured muon by lone-pair electrons at C atom quantitatively.
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