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- W2734784438 abstract "The predissociation mechanism of D2 near the threshold for the production of the D(2s, 2p) fragments has been studied by measuring the fragment yield spectra, fragment velocity map images, and fragment branching ratios D(2s)/(D(2s) + D(2p)) using a combination of XUV laser and velocity map imaging. The predissociation dynamics of the 2pπC1Πu±(υ = 19) and 3pπD1Πu±(υ = 4,5) states were studied. The 2pπC1Πu±(υ = 19) state is a bound state due to a shallow barrier. For the R(0) transition to the 2pπC1Πu+(υ = 19) state, the experimental results suggest that the predissociation occurs via three channels with decreasing importance: l-uncoupling with the 2pσB1Σu+ state, tunneling, and l-uncoupling with the 3pσB′1Σu+ state. For the R(1) transition to the 2pπC1Πu+(υ = 19) state, the first channel plays the dominant role. For the Q(1) transition to the 2pπC1Πu–(υ = 19) state, the predissociation occurs via tunneling as required by symmetry. For the predissociation of the 3pπD1Πu+(υ = 4,5) states, the experimental data confirm the earlier results indicating that the main perturbing state is 3pσB′1Σu+. The Beutler–Fano profiles and the associated spectroscopic parameters for the various predissociations have also been obtained. The measured Fano-parameters q for the P- and R-branches of the 3pπD1Πu+ state are found to have opposite signs, and their relationships are in agreement with a formula derived from the Fano equation. Rotationally resolved Beutler–Fano profiles were measured for the P(2) and P(3) lines." @default.
- W2734784438 created "2017-07-21" @default.
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- W2734784438 date "2017-08-01" @default.
- W2734784438 modified "2023-10-18" @default.
- W2734784438 title "Electronic and Tunneling Predissociations in the 2p<i>πC</i><sup>1</sup>Π<sub><i>u</i></sub><sup>±</sup>(υ = 19) and 3p<i>πD</i><sup>1</sup>Π<sub><i>u</i></sub><sup>±</sup>(υ = 4, 5) States of D<sub>2</sub> Studied by a Combination of XUV Laser and Velocity Map Imaging" @default.
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- W2734784438 doi "https://doi.org/10.1021/acs.jpca.7b04808" @default.
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