Polarization effects in collision-induced intramultiplet mixing for Ne)(2p)/sup 5/(3p)) + He

Journal Article · Mon Sep 29 00:00:00 EDT 1986 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.57.1577· OSTI ID:7244348

Manders, M P.I.; Driessen, J P.J.; Beijerinck, H C.W.; Verhaar, B J

High-quality polarized-emission cross sections for the )..cap alpha..)/sub 5/ = chemically bondJ = 1,M/sub J/>..-->..)..cap alpha..)/sub 7/ and )..cap alpha..)/sub 5/..-->..)..cap alpha..)/sub 4/ transitions in the )..cap alpha..) = )(2p)/sup 5/(3p)) multiplet (lifetime 20 ns) have been measured in a crossed-beam experiment. For the )..cap alpha..)/sub 5/..-->..)..cap alpha..)/sub 7/ transition we observe a strong preference for the chemically bondM/sub J/chemically bond = 0 orientation. The small cross section for the chemically bondM/sub J/chemically bond = 1 orientation can be understood qualitatively from the model potentials of Hennecart and Masnou-Seeuws by the strong coupling to the )..cap alpha..)/sub 4/ and )..cap alpha..)/sub 6/ states (avoided crossings), which is absent for the ..cap omega.. = chemically bondM/sub J/chemically bond = 0/sup -/ molecular potentials because of the constraint of reflection symmetry.

• Research Organization: Physics Department, Eindhoven University of Technology, Eindhoven, The Netherlands
• OSTI ID: 7244348
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 57:13; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

640302* -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
640304 -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
BEAMS
COLLIDING BEAMS
CROSS SECTIONS
ELECTRIC FIELDS
ELECTROMAGNETIC RADIATION
ELEMENTS
EMISSION
ENERGY DEPENDENCE
ENERGY LEVELS
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EXCITED STATES
FINE STRUCTURE
FLUIDS
GASES
HELIUM
INELASTIC SCATTERING
LASER RADIATION
LIFETIME
MEV RANGE
MEV RANGE 10-100
NEON
NONMETALS
P STATES
PHOTON EMISSION
POLARIZATION
RADIATIONS
RARE GASES
SCATTERING
TOTAL CROSS SECTIONS
VARIATIONS