First observation of resonant excitation of high-n states in positronium

First observation of resonant excitation of high-n states in positronium

We have performed the first excitation of high-{ital n} states of positronium using resonant, two-photon excitation applied to the {ital n}=1 to 2 and 2 to {ital n} transitions. Absolute values for the line positions were quantitatively determined for {ital n}=14 and 15 and compared well with calcul...

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Veröffentlicht in:Physical review letters 1990-05, Vol.64 (20), p.2366-2369
Hauptverfasser: ZIOCK, K. P, HOWELL, R. H, MAGNOTTA, F, FAILOR, R. A
Format: Artikel
Sprache:eng
Schlagworte:
ABSORPTION
ANNIHILATION
ATOMIC AND MOLECULAR PHYSICS
BASIC INTERACTIONS
DATA
DISTRIBUTION
DOPPLER EFFECT
ELECTROMAGNETIC INTERACTIONS
ELEMENTARY PARTICLES
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
Exact sciences and technology
EXCITATION
Exotic atoms and molecules (containing mesons, muons, and other unusual particles)
EXPERIMENTAL DATA
GROUND STATES
INFORMATION
INTERACTIONS
MASSLESS PARTICLES
MULTI-PHOTON PROCESSES
NUMERICAL DATA 640303 > Atomic, Molecular & Chemical Physics-- Positronium, Muonium, & Muonic & Mesic Atoms & Molecules
PHOTONS
Physics
POSITRONIUM
RESONANCE ABSORPTION
Studies of special atoms, molecules and their ions
clusters
TIME DEPENDENCE
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Beschreibung
Zusammenfassung:We have performed the first excitation of high-{ital n} states of positronium using resonant, two-photon excitation applied to the {ital n}=1 to 2 and 2 to {ital n} transitions. Absolute values for the line positions were quantitatively determined for {ital n}=14 and 15 and compared well with calculated predictions. The prediction of the {ital n}{sup {minus}3} scaling of the relative transition rates was observed for {ital n}=12 to 19.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.64.2366