Maddern, THargreaves, L.RFrancis-Staite, J.RBrunger, Michael JBuckman, StephenWinstead, CarlMcKoy, Vincent2009-08-252010-12-202009-08-252010-12-20Physical Review Letters 100.6 (2008): 063202/1-40031-90071079-7114http://hdl.handle.net/10440/761http://digitalcollections.anu.edu.au/handle/10440/761Using 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 eVand 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.4 pageshttp://www.sherpa.ac.uk/romeo/index.php "Author can archive pre-print (ie pre-refereeing) … post-print (ie final draft post-refereeing) … [and] publisher's version/PDF. Link to publisher version … [and] Copyright notice required. Publisher's version/PDF can be used on … employers web site." - from SHERPA/RoMEO site (as at 25/02/10). ©2008 The American Physical SocietyKeywords: Electromagnetic wave polarization; Electron energy levels; Molecular dynamics; Nozzles; Pyrolysis; Electron scattering cross sections; Integral cross sections; Schwinger multichannel variational method; Electron scattering2008-02-1410.1103/PhysRevLett.100.0632022015-12-09