Investigation of the Wigner spin rule in collisions of N$sup +$ with He, Ne, Ar, N$sub 2$, and O$sub 2$

Journal Article · Wed Oct 31 23:00:00 EST 1973 · Phys. Rev., A, v. 8, no. 5, pp. 2359-2362

OSTI ID:4345844

Moore, Jr, J H

The Wigner electron-spin-conservation rule has been investigated in collisions of 1.5-3.5-keV N/sup +/ with He, Ne, Ar, N/sub 2/, and O/sub 2/ by th e technique of ion-impact energy-loss spectrometry. Inelastic and superelastic collisions involving both ground-state and metastable N/sup +/ have been observed in the energy-loss spectrum between -2.1 and 4.1 eV. The intensities of many of these transitions have been measured and the beam composition and transition cross sections have been determined. In collisions of N/sup +/ with the singlet- state targets, spin-conservative transitions are nearly three orders of magnitude more probable than spin-nonconservative transitions. In the N/sup +/-O/sub 2/ collisi ons there is some evidence that the Wigner rule does not hold as well as in less complex collisions. (auth)

• Research Organization: Chemistry Department, University of Maryland, College Park, Maryland 20742
• NSA Number: NSA-29-022328
• OSTI ID: 4345844
• Journal Information: Phys. Rev., A, v. 8, no. 5, pp. 2359-2362, Journal Name: Phys. Rev., A, v. 8, no. 5, pp. 2359-2362; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

*ARGON-- ION-ATOM COLLISIONS
*HELIUM-- ION-ATOM COLLISIONS
*NEON-- ION-ATOM COLLISIONS
*NITROGEN IONS-- ION-MOLECULE COLLISIONS
*NITROGEN-- ION- MOLECULE COLLISIONS
*OXYGEN-- ION-MOLECULE COLLISIONS
CROSS SECTIONS
ELASTIC SCATTERING
ENERGY LOSSES
INELASTIC SCATTERING
KEV RANGE 01-10
N60400* --Physics (Atomic & Molecular)--Collision Phenomena
SPIN
WIGNER SCATTERING