Cross sections for resonant vibrational excitation of N/sub 2/ by electron impact

Journal Article · Sun Mar 01 04:00:00 EST 1981 · Phys. Rev., A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.23.1089· OSTI ID:6635117

Hazi, A U; Rescigno, T N; Kurilla, M

We report the results of a theoretical study of resonant vibrational-excitation of N/sub 2/ by low-energy electrons. The vibrational-excitation cross sections were calculated using ab initio fixed-nuclei resonance parameters in the complex-potential or ''boomerang'' model of Dube and Herzenberg. The electronic resonance energy and decay width were extracted from several ab initio calculations of the /sup 2/Pi/sub g/ shape resonance of N/sub 2//sup ts-/. The good agreement between the present cross sections and those obtained recently with the R-matrix technique indicates that the assumptions underlying the complex-potential model are valid for the case of N/sub 2//sup ts-/(/sup 2/Pi/sub g/). The present results also show the sensitivity of the computed vibrational-excitation cross sections to the fixed-nuclei resonance parameters employed in the calculations. The differential vibrational-excitation cross sections at 90/sup 0/ and the total integrated cross section which we have obtained agree reasonably well with the available experimental data.

• Research Organization: Theoretical Atomic and Molecular Physics Group, Lawrence Livermore National Laboratory, University of California, Livermore, California 94550
• OSTI ID: 6635117
• Journal Information: Phys. Rev., A; (United States), Journal Name: Phys. Rev., A; (United States) Vol. 23:3; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
COLLISIONS
CROSS SECTIONS
ELECTRON COLLISIONS
ELECTRON-MOLECULE COLLISIONS
ELEMENTS
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
EXCITATION
EXCITED STATES
MOLECULE COLLISIONS
NITROGEN
NONMETALS
VIBRATIONAL STATES