Abstract
Within the framework of light-cone algebra, it is shown that a logarithmic divergence in the electromagnetic mass shift of a hadron arises precisely due to a mass term in the quark propagator. This divergence, therefore, can be removed by mass renormalization. The coefficient of this divergence is a scalar density which transforms as for the case of a nucleon. In our analysis, the gauge invariance to order is explicitly used.
- Received 21 September 1973
DOI:https://doi.org/10.1103/PhysRevD.8.4635
©1973 American Physical Society