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Renormalization-group improvement of the spectrum of hydrogenlike atoms with massless fermions

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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.

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Reproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevA.66.062108

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Articles publicats en revistes (Física Quàntica i Astrofísica)

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Renormalization-group improvement of the spectrum of hydrogenlike atoms with massless fermions