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
- 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, Vol. 56, Issue 2; Other Information: PBD: Aug 1997
- Country of Publication:
- United States
- Language:
- English
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