Quasielastic state-changing collisions of high-Rydberg atoms with rare-gas atoms
For 20< or =n< or =45, two types of quasielastic state-changing-collisional (QESCC) processes, i.e., (i) l-changing and (ii) n- and l-changing processes, have been theoretically investigated based on the free-electron model in which an excited Rydberg electron behaves as if it were ''free'' and slow with its interaction with a rare-gas atom playing a decisive role. It is shown that a parameter u/sub min/ ( = ..nu nu..'..delta..E a/sub 0//(hV)) is quite useful for characterizing both of these QESCC processes in a unified way where ..nu.. (approx. =..nu..') is an effective principal quantum number of the initial (final) state, ..delta..E is an energy defect, and V is a relative velocity. It is theoretically found that higher-angular-momentum states are dominantly populated in the final channel of these QESCC processes with 1
- Research Organization:
- Department of Engineering Physics, The University of Electro-Communications, Chofu-shi, Tokyo 182, Japan
- OSTI ID:
- 6078792
- Journal Information:
- Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 27:5; ISSN PLRAA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ATOM COLLISIONS
ATOM-ATOM COLLISIONS
COLLISIONS
CROSS SECTIONS
ELEMENTS
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
EXCITED STATES
FLUIDS
GASES
IMPULSE APPROXIMATION
NONMETALS
QUANTUM NUMBERS
RARE GASES
RYDBERG STATES