Laser studies of the decay chain of metastable anti-protonic helium atoms - INSPIRE

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Laser studies of the decay chain of metastable anti-protonic helium atoms

PS205

Collaboration

•

R.S. Hayano
(
- Tokyo U.
)

Apr, 1994

14 pages

Published in:

Phys.Rev.Lett. 73 (1994) 1485-1488,
Phys.Rev.Lett. 73 (1994) 3181 (erratum)

DOI:

10.1103/PhysRevLett.73.1485,
10.1103/PhysRevLett.73.3181 (erratum)

Report number:

INS-1029,
CERN-PPE-94-96,
CERN-PPE-94-096

Experiments:

CERN-LEAR

View in:

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Abstract: (APS)

Laser studies of metastable antiprotonic helium atoms, which we recently initiated by observing a sharp increase of the antiproton annihilation rate induced by laser-stimulated resonant transitions, have been extended. With a single laser tuned to the resonance already found at 597.26 nm, we have now established the time dependence of the upper state population. With two lasers ignited at variable time separation, we also studied the feeding of the upper state from higher atomic levels. The initial populations and level lifetimes of excited exotic atoms were determined.

anti-p nucleus: capture
capture: anti-p nucleus
anti-p nucleus: annihilation
annihilation: anti-p nucleus
helium: hadronic atom
anti-p: hadronic atom
energy levels: lifetime
radiation: laser
resonance: transition
transition: resonance

References(13)

Figures(0)

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