Observation of p-wave threshold behavior in electron attachment to F2 molecules |
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Authors: | Braun M Ruf M-W Fabrikant I I Hotop H |
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Institution: | Fachbereich Physik, Technische Universit?t, D-67653 Kaiserslautern, Germany. |
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Abstract: | Using the high resolution laser photoelectron attachment method, we demonstrate that the cross section for F- formation due to electron capture by F2(X{1}Sigma{g}{+}) molecules at very low energies exhibits p-wave threshold behavior. This finding confirms the theoretical expectation that low-energy attachment to F2 proceeds through the F2{-}(2Sigma{u}{+}) p-wave shape resonance in contrast with previous experimental claims for s-wave threshold behavior. |
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