|Title||Dynamics of dissociative recombination versus electron ejection in single rovibronic resonances of BH|
|Publication Type||Journal Article|
|Year of Publication||2007|
|Authors||Viteri, CR, Gilkison, AT, Grant, ER|
|Journal||Journal of Chemical Physics|
Optical-optical-optical triple resonance spectroscopy isolates transitions to vibrationless Rydberg states of BH with principal quantum numbers from n=7 to 50. Corresponding resonances appear in the excitation spectrum of excited boron atoms produced by the dissociative relaxation of these states. The decay to neutral products occurs on a nanosecond time scale. Yet, corresponding resonances show Fano coupling widths that approach 1 cm(-1). Above threshold, spontaneous ionization dominates, but line shapes match for resonances with the same electron orbital quantum numbers built on v(+)=0 and v(+)=1 cores. This striking feature-for-feature similarity in predissociation and autoionization line shapes affirms that inelastic electron-cation scattering pathways leading to electron ejection and dissociative recombination proceed through a common continuum. (c) 2007 American Institute of Physics.
|URL||<Go to ISI>://000244530900010|