Resonance charge exchange between excited states in slow proton-hydrogen collisions

The theory of resonance charge exchange in slow collisions of a proton with a hydrogen atom in the excited state is developed. It extends the Firsov-Demkov theory of resonance charge exchange to the case of degenerate initial and final states. The theory is illustrated by semiclassical and quantum c...

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Bibliographic Details
Published in:Physical review. A, Atomic, molecular, and optical physics Atomic, molecular, and optical physics, 2010-09, Vol.82 (3), Article 032707
Main Authors: Tolstikhina, Inga Yu, Kato, Daiji
Format: Article
Language:English
Subjects:
APPROXIMATIONS
ATOM COLLISIONS
ATOMIC AND MOLECULAR PHYSICS
ATOMS
BARYONS
CALCULATION METHODS
CHARGE EXCHANGE
COLLISIONS
COUPLING
CROSS SECTIONS
ELEMENTARY PARTICLES
ELEMENTS
ENERGY LEVELS
EXCITED STATES
FERMIONS
HADRONS
HYDROGEN
ION COLLISIONS
ION-ATOM COLLISIONS
NONMETALS
NUCLEONS
PROTONS
RESONANCE
SEMICLASSICAL APPROXIMATION
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Summary:The theory of resonance charge exchange in slow collisions of a proton with a hydrogen atom in the excited state is developed. It extends the Firsov-Demkov theory of resonance charge exchange to the case of degenerate initial and final states. The theory is illustrated by semiclassical and quantum calculations of charge exchange cross sections between states with n=2 in parabolic and spherical coordinates. The results are compared with existing close-coupling calculations.
ISSN:1050-2947
1094-1622
DOI:10.1103/PhysRevA.82.032707