Weak decays of H-like {sup 140}Pr{sup 58+} and He-like {sup 140}Pr{sup 57+} ions

Weak decays of H-like {sup 140}Pr{sup 58+} and He-like {sup 140}Pr{sup 57+} ions

The nuclear K-shell electron-capture (EC) and positron ({beta}{sup +}) decay constants, {lambda}{sub EC} and {lambda}{sub {beta}{sup +}} of H-like {sup 140}Pr{sup 58+} and He-like {sup 140}Pr{sup 57+} ions, measured recently in the experimental storage ring (ESR) at GSI, were calculated using standa...

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Veröffentlicht in:Physical review. C, Nuclear physics Nuclear physics, 2008-08, Vol.78 (2)
Hauptverfasser: Ivanov, A. N., Stefan Meyer Institut fuer subatomare Physik Oesterreichische Akademie der Wissenschaften, Boltzmanngasse 3, A-1090 Vienna, Faber, M., Reda, R., Kienle, P., Physik Department, Technische Universitaet Muenchen, D-85748 Garching
Format: Artikel
Sprache:eng
Schlagworte:
ACCURACY
ATOMIC AND MOLECULAR PHYSICS
BETA-PLUS DECAY
DECAY
ELECTRON CAPTURE
ELECTRON SPIN RESONANCE
K SHELL
MULTICHARGED IONS
POSITRONS
PRASEODYMIUM 140
SIMULATION
STORAGE RINGS
WEAK INTERACTIONS
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Zusammenfassung:The nuclear K-shell electron-capture (EC) and positron ({beta}{sup +}) decay constants, {lambda}{sub EC} and {lambda}{sub {beta}{sup +}} of H-like {sup 140}Pr{sup 58+} and He-like {sup 140}Pr{sup 57+} ions, measured recently in the experimental storage ring (ESR) at GSI, were calculated using standard weak interaction theory. The calculated ratios R={lambda}{sub EC}/{lambda}{sub {beta}{sup +}} of the decay constants agree with the experimental values within an accuracy better than 3%.
ISSN:0556-2813
1089-490X
DOI:10.1103/PHYSREVC.78.025503