Final-state distributions in resonant charge transfer by ions on Rydberg atoms

Journal Article · Mon Dec 01 04:00:00 EST 1997 · Physical Review A

DOI:https://doi.org/10.1103/PhysRevA.56.4656· OSTI ID:553061

Fisher, D S; Fehrenbach, C W; Lundeen, S R ^[1]; Hessels, E A ^[2]; DePaola, B D ^[3]

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1. Department of Physics, Colorado State University, Ft. Collins, Colorado 80523 (United States)
2. Department of Physics, York University, Toronto, Ontario, M3J1P3 (CANADA)
3. Department of Physics, Kansas State University, Manhattan, Kansas 66506 (United States)

Charge-transfer collisions between He{sup +} ions at v=0.1a.u. and excited states of Rb with n{sub t}=7{endash}14 have been studied, using a laser-based method of analyzing the final-state distribution. A Doppler-tuned CO{sub 2} laser is used to selectively detect one particular final state (n,L) and directly measure the fraction of the total charge transfer product contained in that one level. The fractional population shows clear resonant behavior as a function of target excitation level (n{sub t}). Measurements were made for n=10 levels of helium with L=4, 5, and 7{endash}9, and for the 9G level. The results are compared with predictions of classical trajectory Monte Carlo calculations. {copyright} {ital 1997} {ital The American Physical Society}

• OSTI ID: 553061
• Journal Information: Physical Review A, Journal Name: Physical Review A Journal Issue: 6 Vol. 56; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
CATIONS
CHARGE EXCHANGE
DOPPLER EFFECT
HELIUM IONS
ION-ATOM COLLISIONS
LASER RADIATION
MONTE CARLO METHOD
RUBIDIUM
RYDBERG STATES