Towards the QED beta function and renormalons at 1/Nf2 and 1/Nf3
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DOI: 10.1103/physrevd.102.035005
Abstract: We determine the 1=N2 f and 1=N3 f contributions to the QED beta function stemming from the closed set of nested diagrams. At the order of 1=N2 f, we discover a new logarithmic branch cut… read more here.
Keywords: function; beta function; function renormalons; qed beta ... See more keywords