A Cusp in QED at g=2 [PDF]
Johann Rafelski, Lance LabunWe explore the first order in alpha properties of the QED vacuum fluctuations as a function of the gyromagnetic factor g . We find a cusp in both the b_0 renormalization group coefficient and the weak field, infrared limit expansion of the light-light scattering coefficients for the Dirac case g=2.View original: http://arxiv.org/abs/1205.1835
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