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Renormalization-group improvement of the spectrum of hydrogenlike atoms with massless fermions
Pineda, Antonio
Universitat de Barcelona
We obtain the next-to-next-to-leading-logarithmic renormalization-group improvement of the spectrum of hydrogenlike atoms with massless fermions by using potential NRQED. These results can also be applied to the computation of the muonic hydrogen spectrum where we are able to reproduce some known double logarithms at O(m¿s6). We compare with other formalisms dealing with logarithmic resummation available in the literature.
2010-05-04
Electrodinàmica quàntica
Teoria de camps (Física)
Pertorbació (Dinàmica quàntica)
Nivells d'energia (Mecànica quàntica)
Quantum electrodynamics
Quantum field theory
Perturbation (Quantum dynamics)
Energy levels (Quantum mechanics)
(c) The American Physical Society, 2002
Article
The American Physical Society
         

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