Measurement of absolute differential cross sections for the vibrational excitation of molecular nitrogen by electron impact in the {sup 2}{Pi}{sub g} shape resonance region

Journal Article · Fri Aug 01 04:00:00 EDT 1997 · Physical Review A

DOI:https://doi.org/10.1103/PhysRevA.56.1384· OSTI ID:528050

Sweeney, C J; Shyn, T W ^[1]

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1. Space Physics Research Laboratory, University of Michigan, Ann Arbor, Michigan 48109-2143 (United States)

By means of a crossed-beam technique, we have conducted measurements of absolute differential cross sections for the vibrational excitation of the electronic ground state of N{sub 2} by electron impact. The {sup 2}{Pi}{sub g} shape resonance region was treated, with the impact energies being those of the resonance{close_quote}s first four elastic scattering peaks{emdash}approximately 1.9, 2.1, 2.4, and 2.6 eV. The scattering angles covered were from 12{degree} through 156{degree}, in 12{degree} increments. Absolute integrated-excitation cross sections were computed from the differential cross sections. Our results show the expected strong D-wave character, and are compared with the recent results of others, both experimental and theoretical. {copyright} {ital 1997} {ital The American Physical Society}

• OSTI ID: 528050
• Journal Information: Physical Review A, Journal Name: Physical Review A Journal Issue: 2 Vol. 56; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
CROSS SECTIONS
ELECTRON-MOLECULE COLLISIONS
EV RANGE 01-10
EXCITATION
MOLECULAR BEAMS
NITROGEN
RESONANCE
VIBRATIONAL STATES