| Автор | Jun-Chen Su |
| Автор | Xue-Xi Yi |
| Автор | Ying-Hui Cao |
| Дата выпуска | 1999-12-01 |
| dc.description | The QED renormalization is restudied by using a mass-dependent subtraction which is performed at a time-like renormalization point. The subtraction exactly respects necessary physical and mathematical requirements such as the gauge symmetry, the Lorentz invariance and the mathematical convergence. Therefore, the renormalized results derived in the subtraction scheme are faithful and have no ambiguity. In particular, it is proved that the solution of the renormalization group equation (RGE) satisfied by a renormalized wavefunction, propagator or vertex can be fixed by applying the renormalization boundary condition and, thus, an exact S-matrix element can be expressed in the form as written in the tree diagram approximation provided that the coupling constant and the fermion mass are replaced by their effective ones. In the one-loop approximation, the effective coupling constant and the effective fermion mass obtained by solving their RGEs are given in rigorous and explicit expressions which are suitable in the whole range of distance and exhibit physically reasonable asymptotic behaviours. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | QED renormalization given in a mass-dependent subtraction and the renormalization group approach |
| Тип | paper |
| DOI | 10.1088/0954-3899/25/12/303 |
| Electronic ISSN | 1361-6471 |
| Print ISSN | 0954-3899 |
| Журнал | Journal of Physics G: Nuclear and Particle Physics |
| Том | 25 |
| Первая страница | 2325 |
| Последняя страница | 2344 |
| Аффилиация | Jun-Chen Su; Center for Theoretical Physics, Department of Physics, Jilin University, Changchun 130023, People's Republic of China |
| Аффилиация | Xue-Xi Yi; Center for Theoretical Physics, Department of Physics, Jilin University, Changchun 130023, People's Republic of China |
| Аффилиация | Ying-Hui Cao; Center for Theoretical Physics, Department of Physics, Jilin University, Changchun 130023, People's Republic of China |
| Выпуск | 12 |
