PREDISSOCIATION OF H-3 N = 2 RYDBERG STATES - PRODUCT BRANCHING AND ISOTOPE EFFECTS

摘要: A translational spectroscopy technique is used to obtain predissociation kinetic energy release spectra from the lowest bound states of H3, 2s 2A’1 and 2p 2A‘2. These H*3 are formed in near‐resonant electron capture by 3 keV H+3 Cs vapor. Their ground rovibrational levels energetically about 1 eV above H+H+H dissociation limit, thus all can yield both H2+H three‐body products. The contain two‐body components deconvoluted branching ratios. Data obtained two different ion sources show that three‐body/two‐body ratio increases with increased H*3. results compared recent theory previously reported ratios dissociative recombination H+3. comparison suggests monotonically total electronic D*3 predissocation has a similar behavior. H‐ D‐atom decay HD*2 t...