Mechanism of 'GSI oscillations' in electron capture by highly charged hydrogen-like atomic ions

Journal Article · Sun Jul 15 00:00:00 EDT 2012 · Journal of Experimental and Theoretical Physics

DOI:https://doi.org/10.1134/S1063776112060052· OSTI ID:22069410

Krainov, V. P., E-mail: [e-mail] ^[1]

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1. Moscow Institute of Physics and Technology (Russian Federation)

We suggest a qualitative explanation of oscillations in electron capture decays of hydrogen-like {sup 140}Pr and {sup 142}Pm ions observed recently in an ion experimental storage ring (ESR) of Gesellschaft fuer Schwerionenforschung (GSI) mbH, Darmstadt, Germany. This explanation is based on the electron multiphoton Rabi oscillations between two Zeeman states of the hyperfine ground level with the total angular momentum F = 1/2. The Zeeman splitting is produced by a constant magnetic field in the ESR. Transitions between these states are produced by the second, sufficiently strong alternating magnetic field that approximates realistic fields in the GSI ESR. The Zeeman splitting amounts to only about 10{sup -5} eV. This allows explaining the observed quantum beats with the period 7 s.

• OSTI ID: 22069410
• Journal Information: Journal of Experimental and Theoretical Physics, Vol. 115, Issue 1; Other Information: Copyright (c) 2012 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7761
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ANGULAR MOMENTUM
APPROXIMATIONS
ATOMIC IONS
ELECTRON CAPTURE
ELECTRON CAPTURE DECAY
ELECTRONS
ENERGY-LEVEL TRANSITIONS
EV RANGE
GROUND STATES
HYDROGEN
HYPERFINE STRUCTURE
MAGNETIC FIELDS
MULTI-PHOTON PROCESSES
OSCILLATIONS
PRASEODYMIUM 140
PROMETHIUM 142
STORAGE RINGS
ZEEMAN EFFECT