| Renormalizability and nonrenormalizable interactions |
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| 作者姓名： | 姚海波 吴式枢 |
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| 作者单位： | Center for Theoretical Physics and School of Physics, JiLin University, Changchun 130023, China |
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| 基金项目： | Supported by National Nature Science Foundation of China (10775059) |
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| 摘 要： | 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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| 关 键 词： | renormalizability dressed scheme vacuum fluctuation effective mass |
| 收稿时间： | 2008-10-22 |
Renormalizability and nonrenormalizable interactions |
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| Institution: | Center for Theoretical Physics and School of Physics;JiLin University;Changchun 130023;China |
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| Abstract: | |
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| Keywords: | renormalizability dressed scheme vacuum fluctuation effective mass |
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