Renormalizability and nonrenormalizable interactions

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YAO Hai-Bo and WU Shi-Shu. Renormalizability and nonrenormalizable interactions[J]. Chinese Physics C, 2009, 33(S1): 12-14. doi: 10.1088/1674-1137/33/S1/004
YAO Hai-Bo and WU Shi-Shu. Renormalizability and nonrenormalizable interactions[J]. Chinese Physics C, 2009, 33(S1): 12-14.  doi: 10.1088/1674-1137/33/S1/004 shu
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Received: 2008-10-22
Revised: 1900-01-01
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Renormalizability and nonrenormalizable interactions

    Corresponding author: WU Shi-Shu,

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 ρ 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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