Renormalizability and nonrenormalizable interactions |
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Authors: | YAO Hai-Bo WU Shi-Shu |
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Affiliation: | Center for Theoretical Physics and School of Physics, JiLin University |
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Abstract: | Arguments are provided which show that extension of renormalizability in quantum field theory is possible. By an appropriate choice of effective Lagrangian, a dressed Feynman propagator is obtained. In this scheme, higher order Feynman diagrams become self-convergent and nonrenormalizable interactions become renormalizable. As an example, the vacuum fluctuation effects on p meson mass for the vector-tensor coupling model is discussed. It is found that the result can agree with the experimental value when coupling constant is adjusted. |
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Keywords: | renormalizability dressed scheme vacuum fluctuation effective mass |
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