Anri Watanabe

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Three-body Coulomb explosion processes of triply charged positive ions of methylacetylene (CH(3)-C≡C-H) and its isotopomer, methyl-d(3)-acetylene (CD(3)-C≡C-H), induced by an ultrashort intense laser field (790 nm, ∼40 fs, 5.0 × 10(13) W cm(-2)) are investigated by the coincidence momentum imaging method. Two types of three-body decomposition processes(More)
The use of localized surface plasmon resonance induced by Ag nanostructures is a promising way for high-efficiency photoelectric conversion. In plasmonic photoelectric conversion devices, however, the chemical instability of Ag in ambient atmosphere and its immediate deterioration have been a critical issue. Here, we propose a Ag-Co nanostructure array(More)
Two-body decomposition processes of methylacetylene (CH(3)CCH) and its isotopomer methyl-d(3)-acetylene (CD(3)CCH) in intense laser fields (790 nm, 40 fs, 5.0 × 10(13) W cm(-2)) are investigated by the coincidence momentum imaging (CMI). In methyl-d(3)-acetylene, a total of six decomposition pathways in which one of the C-C bonds is broken and a total of(More)
The form factors of the decay K → πeν (Ke3) have been determined from the comparison of the experimental and Monte Carlo Dalitz distributions containing about 10 Ke3 events. The following values of the parameters were obtained: λ+ = 0.0278±0.0017(stat)±0.0015(syst), fS/f+(0) = 0.0040±0.0160(stat)±0.0067(syst) and fT/f+(0) = 0.019±0.080(stat)±0.038(syst).(More)
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