Absolute Electron Scattering Cross Sections for theCF2Radical | Zendy

Todd Maddern | Zendy; Leigh Hargreaves | Zendy; Jessica Francis-Staite | Zendy; M. J. Brunger | Zendy; S J Buckman | Zendy; Carl Winstead | Zendy; Vincent McKoy | Zendy

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Absolute Electron Scattering Cross Sections for theCF2Radical

Author(s) -

Todd Maddern,

Leigh Hargreaves,

Jessica Francis-Staite,

M. J. Brunger,

S J Buckman,

Carl Winstead,

Vincent McKoy

Publication year - 2008

Publication title -

physical review letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.688

H-Index - 673

eISSN - 1079-7114

pISSN - 0031-9007

DOI - 10.1103/physrevlett.100.063202

Subject(s) - absolute scale , scattering , atomic physics , physics , elastic scattering , electron scattering , electron , nuclear physics , optics

Using a crossed electron-molecular beam experiment, featuring a skimmed nozzle beam with pyrolytic radical production, absolute elastic cross sections for electron scattering from the CF2 molecule have been measured. A new technique for placing measured cross sections on an absolute scale is used for molecular beams produced as skimmed supersonic jets. Absolute differential cross sections for CF2 are reported for incident electron energies of 30-50 eV and over an angular range of 20-135 deg. Integral cross sections are subsequently derived from those data. The present data are compared to new theoretical predictions for the differential and integral scattering cross sections, as calculated with the Schwinger multichannel variational method using the static-exchange and static-exchange plus polarization approximations.

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