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Title: Observation of Feshbach resonances in the F + H2 → HF + H Reaction
Authors: Qiu, M.
Ren, Z.
Che, L.
Dai, D.
Harich, S.A.
Wang, X.
Yang, X.
Xu, C.
Xie, D.
Gustafsson, M.
Skodje, R.T.
Sun, Z.
Zhang, D.H. 
Issue Date: 10-Mar-2006
Source: Qiu, M., Ren, Z., Che, L., Dai, D., Harich, S.A., Wang, X., Yang, X., Xu, C., Xie, D., Gustafsson, M., Skodje, R.T., Sun, Z., Zhang, D.H. (2006-03-10). Observation of Feshbach resonances in the F + H2 → HF + H Reaction. Science 311 (5766) : 1440-1443. ScholarBank@NUS Repository.
Abstract: Reaction resonances, or transiently stabilized transition-state structures, have proven highly challenging to capture experimentally. Here, we used the highly sensitive H atom Rydberg tagging time-of-flight method to conduct a crossed molecular beam scattering study of the F + H2 → HF + H reaction with full quantum-state resolution. Pronounced forward-scattered HF products in the v′ = 2 vibrational state were clearly observed at a collision energy of 0.52 kcal/mol; this was attributed to both the ground and the first excited Feshbach resonances trapped in the peculiar HF(v′ = B)-H′ vibrationally adiabatic potential, with substantial enhancement by constructive interference between the two resonances.
Source Title: Science
ISSN: 00368075
DOI: 10.1126/science.1123452
Appears in Collections:Staff Publications

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