2012 Fiscal Year Final Research Report
Experimental verification of the validity of the semi-classicalapproximation for the decay dynamics on the complex potential
| Project/Area Number |
22550008
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Physical chemistry
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| Research Institution | Sophia University (2012)
Tokyo Institute of Technology (2010-2011) |
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Principal Investigator |
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| Project Period (FY) |
2010 – 2012
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| Keywords | 原子分子物理 / 2 電子励起分子 / 解離 / 対称性分離 / 飛行時間測定 / 崩壊ダイナミックス / 準安定原子 |
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| Research Abstract |
Doubly excited states of molecular hydrogen decay mainly via autoionizations or neutral dissociations. The dynamics of the competitive decay is sometimes described by the semi-classical approximation. In the present study, we would like to experimentally verify the validity of the semi-classical approximation by measuring (i) a time-of-flight spectrum of the metastable atomic fragments, the H(2s) atoms, in photoexcitation of H_2 with the electronic symmetry and final state in neutral dissociation being resolved, and (ii) the cross sections for producing two H(2p) atoms as a function of the incident photon energy. The two experiments are expected to give comprehensive information about the decay dynamics, especially for the decay of the Q_2 doubly excite states of H_2. The development of the experiment (i) was about to finish. However, 2011 T?hoku earthquake unfortunately affected the operation of the KEK-PF ring and thus the study has not completed.
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[Presentation] SB モードを利用した準安定原子検出による分子二電子励起状態ダイナミクスの研究2013
Author(s)
熊谷嘉晃, 小田切丈, 田辺健彦, 中野元善, 仲西祐子, 向後陵子,穂坂綱一, 北島昌史, 河内宣之, 鈴木功
Organizer
物構研サイエンスフェスタ,第30回 PF シンポジウム
Place of Presentation
つくば国際会議場(つくば)
Year and Date
20130314-15
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