| Автор | Rodolfo Casana |
| Автор | Sebastião A Dias |
| Дата выпуска | 2001-07-01 |
| dc.description | We show that ultraviolet divergences found in fermionic Green functions of massless QED<sub>2</sub> have an essentially non-perturbative nature. We investigate their origin both in the gauge invariant formalism (where we introduce Wess-Zumino fields to restore quantum gauge invariance) and in the gauge non-invariant formalism, mapping two different but equivalent mechanisms responsible for their appearance. We find the same results in both approaches, what contradicts a previous work of Jian-Ge, Qing-Hai and Yao-Yang, that found no divergences in the chiral Schwinger model considered in the gauge invariant formalism. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | On the origin of divergences in massless QED<sub>2</sub> |
| Тип | paper |
| DOI | 10.1088/0954-3899/27/7/310 |
| Electronic ISSN | 1361-6471 |
| Print ISSN | 0954-3899 |
| Журнал | Journal of Physics G: Nuclear and Particle Physics |
| Том | 27 |
| Первая страница | 1501 |
| Последняя страница | 1517 |
| Выпуск | 7 |
