Polarization studies of H(2p) charge-exchange excitation: H/sup +/-He collisions

Journal Article · Sun Nov 15 04:00:00 EST 1987 · Phys. Rev. A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.36.4644· OSTI ID:5894911

Hippler, R; Faust, M; Wolf, R; Kleinpoppen, H; Lutz, H O

Alignment and orientation for H(2p) excitation in H/sup +/-He collisions have been measured for incident proton energies of 1--4 keV, and scattering angles between 0.5/sup 0/ and 3.5/sup 0/. From the results the relative population of magnetic substates H(2p/sub 0/) and H(2p/sub +- //sub 1/) (i.e., the differential alignment and orientation) is extracted. The results are in excellent agreement with recent theoretical calculations. The observed magnitude of H(2p/sub 0/) excitation demonstrates that, in addition to a 2psigma-2p..pi.. rotational coupling, a 2psigma-2ssigma radial coupling is effective at small impact parameters.

• Research Organization: Fakultaet fr Physik, Universitaet Bielefeld, D-4800 Bielefeld, Federal Republic of Germany
• OSTI ID: 5894911
• Journal Information: Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 36:10; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ANGULAR CORRELATION
ATOM COLLISIONS
BRANCHING RATIO
CATIONS
CHARGE EXCHANGE
CHARGED PARTICLES
COLLISIONS
CORRELATIONS
CROSS SECTIONS
DATA
DIFFERENTIAL CROSS SECTIONS
ELEMENTS
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EXCITATION
EXPERIMENTAL DATA
FLUIDS
GASES
HELIUM
HYDROGEN
HYDROGEN IONS
HYDROGEN IONS 1 PLUS
IMPACT PARAMETER
INFORMATION
ION COLLISIONS
ION-ATOM COLLISIONS
IONS
KEV RANGE
KEV RANGE 01-10
NONMETALS
NUMERICAL DATA
POLARIZATION
RARE GASES