Isotopic velocity-dependent effects in He/sup +/+H/sub 2/ or D/sub 2/ collisions

Journal Article · Sun Jan 31 23:00:00 EST 1988 · Phys. Rev. A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.37.1041· OSTI ID:5646486

Jaecks, D H

Isotope shifts have been measured in the velocity-dependent total cross sections of the m/sub 1/ = 1 magnetic substate of He(3 /sup 3/P) formed in low keV He/sup +/+H/sub 2/ or D/sub 2/ collisions. Similar isotope shifts have been predicted on theoretical grounds and observed in ion-atom collision experiments, where united-atom rotational coupling is the primary excitation mechanism. By extending the basic theoretical ideas to ion-molecule collisions, we can interpret our measured shifts as resulting from rotational coupling within the triatomic HeH/sub 2//sup +/ complex.

• Research Organization: Behlen Laboratory of Physics, University of Nebraska, Lincoln, Nebraska 68588
• OSTI ID: 5646486
• Journal Information: Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 37:3; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
CHARGE EXCHANGE
CHARGED PARTICLES
COLLISIONS
CROSS SECTIONS
DEUTERIUM
ELEMENTS
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EXCITATION
HELIUM IONS
HYDROGEN
HYDROGEN ISOTOPES
ION COLLISIONS
ION-MOLECULE COLLISIONS
IONS
ISOTOPES
KEV RANGE
LIGHT NUCLEI
MOLECULE COLLISIONS
NONMETALS
NUCLEI
ODD-ODD NUCLEI
POLARIZATION-ASYMMETRY RATIO
SCALING LAWS
STABLE ISOTOPES
TOTAL CROSS SECTIONS
VELOCITY