Observation of a large electric dipole moment produced in electron-transfer collisions of H/sup +/ on He

Journal Article · Mon Apr 05 00:00:00 EST 1982 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.48.926· OSTI ID:5167437

Havener, C C; Westerveld, W B; Risley, J S; Tolk, N H; Tully, J C

The measured intensity and polarization of Balmer-alpha radiation resulting from (40--80)-keV collisions of H/sup +/ on He exhibited a strong dependence with electric fields applied axially along the beam direction. With use of a density matrix formalism the collisionally produced electric dipole moment for the n = 3 state was found to be large, reaching 4.4ea/sub 0/ at the lowest collision energy. The center of the electron cloud distribution was found to lag behind the proton.

• Research Organization: Department of Physics, North Carolina State University, Raleigh, North Carolina 27650
• OSTI ID: 5167437
• Journal Information: Phys. Rev. Lett.; (United States), Vol. 48:14
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
HELIUM
ION-ATOM COLLISIONS
HYDROGEN IONS 1 PLUS
BALMER LINES
BRIGHTNESS
DENSITY MATRIX
ELECTRIC DIPOLE MOMENTS
ELECTRIC FIELDS
ELECTRON EXCHANGE
KEV RANGE 10-100
POLARIZATION
ATOM COLLISIONS
CATIONS
CHARGED PARTICLES
COLLISIONS
DIPOLE MOMENTS
ELECTRIC MOMENTS
ELECTRON TRANSFER
ELEMENTS
ENERGY RANGE
FLUIDS
GASES
HYDROGEN IONS
ION COLLISIONS
IONS
KEV RANGE
MATRICES
NONMETALS
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
RARE GASES
640304* - Atomic
Molecular & Chemical Physics- Collision Phenomena