| Автор | Thomas Binoth |
| Автор | E.W. Nigel Glover |
| Автор | Peter Marquard |
| Автор | Jochum J. van der Bij |
| Дата выпуска | 2002-05-01 |
| dc.description | We use an n-dimensional projection method to calculate helicity amplitudes for photon-photon scattering up to the two-loop level, for massless particles inside the loop. We confirm the recent standard model results found by Bern et al using another calculational method. We further apply the method to N = 1 and N = 2 supersymmetric QED. As predicted by the supersymmetric Ward identity, two of the independent amplitudes vanish. The remaining amplitude simplifies as the number of supersymmetries increases. For N = 2 SUSY QED, only contributions of weight 4 remain. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Two-loop corrections to Light-by-Light scattering in Supersymmetric QED |
| Тип | paper |
| DOI | 10.1088/1126-6708/2002/05/060 |
| Electronic ISSN | 1029- 8479 |
| Print ISSN | 1126-6708 |
| Журнал | Journal of High Energy Physics |
| Том | 2002 |
| Первая страница | 60 |
| Последняя страница | 060 |
| Выпуск | 05 |
