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Träfflista för sökning "lärosäte:mah institution:("school of teacher education") ;pers:(Gaigalas Gediminas);lar1:(mah)"

Sökning: lärosäte:mah institution:("school of teacher education") > Gaigalas Gediminas > Malmö högskola

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  • Kang, Huihui, et al. (författare)
  • Hyperfine quenching of the 3s3p^3P_0 state in Mg-like ions
  • 2009
  • Ingår i: Journal of Physics B;19. - Institute of Physics and IOP Publishing. - 0953-4075. ; :19
  • Tidskriftsartikel (refereegranskat)abstract
    • Hyperfine quenching rates of the 3s3p 3P0 level in Mg-like ions were calculated using the GRASP2K package based on the multi-configuration Dirac–Hartree–Fock method. Valence and core-valence correlation effects were accounted for in a systematic way. Breit interactions and QED effects were included in the subsequent relativistic CI calculations. Calculated rates were compared with other theoretical values and with experiment, and a good agreement with the latest experimental value for the 27Al+ ion (Rosenband et al 2007 Phys. Rev. Lett. 98 220801) was found. Furthermore, we showed in detail the contributions from Breit interaction and QED effects to concerned physical properties. Finally, electronic data were presented in terms of a general scaling law in Z that, given isotopic nuclear spin and magnetic moment, allows hyperfine-induced decay rates to be estimated for any isotope along the isoelectronic sequence.
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  • Li, Jiguang, et al. (författare)
  • Hyperfine induced 1s2s^1S_0 -> 1s^2^1S_0 M1 transition of He-like ions
  • 2009
  • Ingår i: The European Physical Journal D - Atomic, Molecular, Optical and Plasma Physics;3. - EDP Sciences, Società Italiana di Fisica, Springer-Verlag. - 1434-6060. ; :3
  • Tidskriftsartikel (refereegranskat)abstract
    • Hyperfine induced SS0 M1 transition probabilities of He-like ions have been calculated from relativistic configuration interaction wavefunctions including the frequency independent Breit interaction and QED effects. Present results for 151Eu and 155Gd are in good agreement with previous calculations [L.N. Labzowsky et al., Phys. Rev. A 63, 054105 (2001)]. Electronic data are given in terms of a general scaling law in Z that, given isotopic nuclear spin and magnetic moment, allows hyperfine induced decay rates to be estimated for any isotope. The results should be helpful for future experimental investigations on QED and parity non-conservation effects.
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  • Li, Jiguang, et al. (författare)
  • Hyperfine induced transitions in He-like, Be-like and Mg-like ions
  • 2009
  • Ingår i: Journal of Physics: Conference series;15. - Institute of Physics and IOP Publishing. - 1742-6588. ; :15
  • Tidskriftsartikel (refereegranskat)abstract
    • Hyperfine quenching rates for 1s2s 1S0 → 1s2 1S0 M1 transition of He-like ions, 2s2p 3P0 → 3P2 → 2s2 1S0 E1 transition of Be-like ions and 3s3p 3P0 → 3s2 S0 E1 transition of Mg-like ions have been calculated from relativistic configuration interaction wavefunctions including the frequency independent Breit interaction and QED effects. The present study not only supply accurate theoretical values for developing atomic clocks, diagnosing low-density plasma, probing nuclear properties, exploring weak interaction beyond standard model, but also to analyze some characteristics in hyperfine induced transitions.
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