Magnetic dipole transition rates from measured lifetimes of levels of Be-like and B-like argon ions
نویسندگان
چکیده
The lifetimes of the 1s2s2p P2 level of Ar XV and 1s 2s2p P3/2 of Ar XIV have been measured using metastable Ar and Ar ions produced by an electron cyclotron resonance ion source, which were subsequently separately captured into a Kingdon ion trap. The lifetime results are t~Ar XV, 2s2p P2) 513.4(7) ms and t~Ar XIV,2p P3/2)59.12(18) ms. Transition rates derived from the measured lifetimes differ significantly from both relativistic and nonrelativistic calculations of the 2s2p P1 – P2 M1 transition rate of Ar XV, but are in reasonable agreement with calculations for the 2p P1/2– P3/2 M1 rate of Ar XIV. @S1050-2947~98!07108-X#
منابع مشابه
Radiative corrections to the magnetic-dipole transition amplitude in B-like ions
The one-electron quantum-electrodynamic corrections to the magnetic-dipole transition amplitude between the fine-structure levels (1s2s2p) P3/2 − P1/2 in boronlike ions are calculated to all orders in αZ. The results obtained serve for improving the theoretical accuracy of the lifetime of the (1s2s2p) P3/2 level in boronlike argon. PACS. 31.30.Jv Relativistic and quantum electrodynamic effects ...
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