Khakoo, M. A. and Malone, C. P. and Johnson, P. V. and Lewis, B. R. and Laher, R. and Wang, S. and Swaminathan, V. and Nuyujukian, D. and Kanik, I. (2008) Electron-impact excitation of X 1Sigma<sub>g</sub><sup>+</sup>(v[double-prime]=0) to the a[double-prime] 1Sigma<sub>g</sub><sup>+</sup>, b 1Piu, c3 1Piu, o3 1Piu, b[prime] 1Sigma<sub>u</sub><sup>+</sup>, c<sub>4</sub><sup>[prime]</sup> 1Sigma<sub>u</sub><sup>+</sup>, G 3Piu, and F 3Piu states of molecular nitrogen. Physical Review A, 77 (1). Art. No. 012704. ISSN 1050-2947 http://resolver.caltech.edu/CaltechAUTHORS:KHApra08
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Measurements of differential cross sections (DCSs) for electron-impact excitation of the a[double-prime] 1Sigma<sub>g</sub><sup>+</sup>, b 1Piu, c3 1Piu, o3 1Piu, b[prime] 1Sigma<sub>u</sub><sup>+</sup>, c<sub>4</sub><sup>[prime]</sup> 1Sigma<sub>u</sub><sup>+</sup>, G 3Piu, and F 3Piu states in N2 from the X 1Sigma<sub>g</sub><sup>+</sup>(v[double-prime]=0) ground level are presented. The DCSs were obtained from energy-loss spectra in the region of 12 to 13.82 eV measured at incident energies of 17.5, 20, 30, 50, and 100 eV and for scattering angles ranging from 2° to 130°. The analysis of the spectra follows a different algorithm from that employed in a previous study of N2 for the valence states [Khakoo et al. Phys. Rev. A 71, 062703 (2005)], since the 1Piu and 1Sigma<sub>u</sub><sup>+</sup> states form strongly interacting Rydberg-valence series. The results are compared with existing data.
|Additional Information:||©2008 The American Physical Society. (Received 24 September 2007; published 7 January 2008) This work was performed at the California State University, Fullerton ((CSUF), Australian National University (ANU), and at the Jet Propulsion Laboratory (JPL), California Institute of Technology (Caltech), under a contract with the National Aeronautics and Space Administration (NASA). We gratefully acknowledge financial support through the National Science Foundation, under Grant No. NSF-PHY-RUI-0096808, and NASA’s Outer Planets Research program. The work at the ANU was supported by the Australian Research Council Discovery Program, through Grant No. DP0558962. This research was performed while C.P.M. received additional support from NASA at JPL. Valuable communications with Dr. K. Bartschat (Drake University, Iowa) regarding channel-coupling effects are greatly appreciated.|
|Subject Keywords:||electron energy loss spectra; electron impact excitation; ground states; nitrogen; Rydberg states|
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|Deposited By:||Archive Administrator|
|Deposited On:||29 Jan 2008|
|Last Modified:||26 Dec 2012 09:49|
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