Near-threshold excitation of the E-3 Sigma(+)(g) state of N-2 by electron impact

Citation
G. Poparic et al., Near-threshold excitation of the E-3 Sigma(+)(g) state of N-2 by electron impact, PHYS REV A, 60(6), 1999, pp. 4542-4545
Citations number
25
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW A
ISSN journal
10502947 → ACNP
Volume
60
Issue
6
Year of publication
1999
Pages
4542 - 4545
Database
ISI
SICI code
1050-2947(199912)60:6<4542:NEOTES>2.0.ZU;2-G
Abstract
Relative differential cross sections, at 0 degrees, for electron-impact exc itation of the E(3)Sigma(g)(+) State of the nitrogen molecule have been mea sured in the near-threshold energy region. A high-resolution crossed-beam d ouble trochoidal electron spectrometer is used and the cross section is mea sured directly, by inelastically scattered electrons detection. Measurement s are placed on the absolute scale by simultaneous measurement of this proc ess and vibrational excitation of the nu = 8 level of the ground state of N -2 via the (2)Pi(g) resonance. Integral cross sections are obtained by usin g relative angular distributions from previous measurements, for energies o f 11.94 and 12.14 eV. Obtained results are compared with ether available da ta. [S1050-2947(99)05211-7].