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Classification of Feshbach resonances in electron-molecule scattering

David James Spence

Jan 1, 19761 citation

Feshbach resonances in elastic scattering of electrons from He, Ne Ar and Kr observed with an ultra-high resolution photoionization electron source

Richard J. Van Brunt, Alan C. Gallagher

peacJan 1, 19770 citations

High-resolution total-cross-section measurements for electron scattering from Ar, Kr, and Xe employing a threshold-photoelectron source

M. Kurokawa, M. Kitajima, K. Toyoshima +6 more

Absolute total cross sections for electron scattering from Ar and Xe at electron energies ranging from 7 meV to 20 eV were obtained with the experimental technique employing the threshold-photoelectron source. The measured total cross sections are in good agreement with those obtained by other groups down to 100 meV, above which several experimental works have been reported. Scattering lengths for electron scattering from Ar, Kr, and Xe were determined from the present total cross sections and our recent results for Kr using the modified effective range theory. The values of the scattering length obtained in the present analysis differ from the values determined from the previous swarm experiments and beam experiments. The resonant structures in the total cross sections due to Feshbach resonances of Ar, Kr, and Xe with an improved energy resolution were also measured. Analyses of the resonant structure were carried out based on the spin-dependent resonant scattering theory in order to determine the values of the natural width of Feshbach resonances of Ar, Kr, and Xe precisely.Absolute total cross sections for electron scattering from Ar and Xe at electron energies ranging from 7 meV to 20 eV were obtained with the experimental technique employing the threshold-photoelectron source. The measured total cross sections are in good agreement with those obtained by other groups down to 100 meV, above which several experimental works have been reported. Scattering lengths for electron scattering from Ar, Kr, and Xe were determined from the present total cross sections and our recent results for Kr using the modified effective range theory. The values of the scattering length obtained in the present analysis differ from the values determined from the previous swarm experiments and beam experiments. The resonant structures in the total cross sections due to Feshbach resonances of Ar, Kr, and Xe with an improved energy resolution were also measured. Analyses of the resonant structure were carried out based on the spin-dependent resonant scattering theory in order to determine the values of the natural width of Feshbach resonances of Ar, Kr, and Xe precisely.

Physical Review ADec 29, 201153 citations

Technique for counting hydrogen molecules

Jan P. Hessler, Deon G. Ettinger, Wallace L. Glab

Measurements of the total yield and rotational distribution of hydrogen molecules formed in chemical reactions or emanating from a surface provide detailed information on the dynamics of these interactions. We have developed a technique which uses a two-photon resonant transition (excited with counterpropagating light beams) to the E electronic state followed by a onephoton transition to the autoionizing continuum of the molecular ion to count different isotopic species in specific rotational levels. To calculate the sensitivity and selectivity of the scheme, we have measured the radiative transition rate, the thermally averaged cross section for elastic scattering to a nearby electronic state, and the real and imaginary parts of the inelastic scattering cross section in the E state. Measurements of the total yield and rotationalMeasurements of the total yield and rotational distribution of hydrogen molecules formed in chemical reactions or emanating from a surface provide detailed information on the dynamics of these interactions. We have developed a technique which uses a two-photon resonant transition (excited with counterpropagating light beams) to the E electronic state followed by a onephoton transition to the autoionizing continuum of the molecular ion to count different isotopic species in specific rotational levels. To calculate the sensitivity and selectivity of the scheme, we have measured the radiative transition rate, the thermally averaged cross section for elastic scattering to a nearby electronic state, and the real and imaginary parts of the inelastic scattering cross section in the E state. Measurements of the total yield and rotational

Annual Meeting Optical Society of AmericaJan 1, 19890 citations

Feshbach resonances in electron scattering from NO

F. Gresteau, Richard I. Hall, J Mazeau +1 more

peacJan 1, 19770 citations

Scattering of Heavy Charged Particles on Hydrogen Atoms

Rimantas Lazauskas, Jaume Carbonell

arXiv:quant-ph/0112104Few-Body SystemsMay 1, 20028 citations

High-resolution total cross section measurements for electron scattering from hydrogen molecule at around the Feshbach resonances

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High-resolution total cross section measurements for electron scattering from hydrogen molecule at around the Feshbach resonances

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