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Anomalous triangle graphs for the divergence of the axial-vector current are studied using the dispersive approach generalized for the case of higher orders of perturbation theory. The validity of this procedure is proved up to the two-loop level. By direct calculation in the framework of dispersive approach we have obtained that the two-loop axial-vector-vector (AVV) amplitude is equal to zero. A
The inner valence region of CO/Pd(100) p(2√2×√2)R45° has been studied by angular resolved photoemission at the Pd 4d Cooper minimum, and with resonant Auger spectroscopy at photon energies corresponding to the C 1s and O 1s x-ray absorption (XA) maxima of the unoccupied parts of the 2π*-Pd 4d hybrid (2πun). Previously unobserved inner valence states are revealed in the direct photoemission and are
Ljus är verkligen fantastiskt. Det kan ge oss känslomässiga upplevelser, som när det faller genom en trädkrona i en skog eller vid en blodröd fullmåne, men det gör det också möjligt för oss att uppfatta och förstå vår omgivning. Majoriteten av den information vi kan tillgodogöra oss om Universum, får vi genom det ljus som atomer och joner i olika kosmiska objekt sänder ut. Varje foton - den minstaMotivated by spectroscopic analysis of astrophysical and laboratory plasma, this thesis concerns the fundamental structure and spectral properties of atoms and their ions. The multiconfiguration Dirac-Hartree-Fock (MCDHF) method is used to predict the emission or absorption of radiation, by atomic systems in general, and of heavy and highly charged ions in particular.The first set of publications,
