Non-leading terms in the light-cone expansion and electromagnetic mass differences |
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Authors: | MJ Holwerda |
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Institution: | Institute for Theoretical Physics, University of Nijmegen, Nijmegen, The Netherlands |
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Abstract: | In this note it is shown to what extent non-leading terms in the FGM light-cone expansion (of conserved currents) are determined by the requirement of gauge invariance. A consistent short distance limit of the light-cone expansion is only obtained by taking these secondary terms into account. In this way the expression for the logarithmically divergent term in electromagnetic mass differences is rederived. |
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