| Автор | Till Bargheer |
| Автор | Niklas Beisert |
| Автор | Wellington Galleas |
| Автор | Florian Loebbert |
| Автор | Tristan McLoughlin |
| Дата выпуска | 2009-11-01 |
| dc.description | Tree level scattering amplitudes in N = 4 super Yang-Mills theory are almost, but not exactly invariant under the free action of the N = 4 superconformal algebra. What causes the non-invariance is the holomorphic anomaly at poles where external particles become collinear. In this paper we propose a deformation of the free superconformal representation by contributions which change the number of external legs. This modified classical representation not only makes tree amplitudes fully invariant, but it also leads to additional constraints from symmetry alone mediating between hitherto unrelated amplitudes. Moreover, in a constructive approach it appears to fully constrain all tree amplitudes when combined with dual superconformal alias Yangian symmetry. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Exacting N = 4 superconformal symmetry |
| Тип | paper |
| DOI | 10.1088/1126-6708/2009/11/056 |
| Electronic ISSN | 1029- 8479 |
| Print ISSN | 1126-6708 |
| Журнал | Journal of High Energy Physics |
| Том | 2009 |
| Первая страница | 56 |
| Последняя страница | 056 |
| Аффилиация | Till Bargheer; Max-Planck-Institut für Gravitationsphysik, Albert-Einstein-Institut, Am Mühlenberg 1, 14476 Potsdam, Germany |
| Аффилиация | Niklas Beisert; Max-Planck-Institut für Gravitationsphysik, Albert-Einstein-Institut, Am Mühlenberg 1, 14476 Potsdam, Germany |
| Аффилиация | Wellington Galleas; Max-Planck-Institut für Gravitationsphysik, Albert-Einstein-Institut, Am Mühlenberg 1, 14476 Potsdam, Germany |
| Аффилиация | Florian Loebbert; Max-Planck-Institut für Gravitationsphysik, Albert-Einstein-Institut, Am Mühlenberg 1, 14476 Potsdam, Germany |
| Аффилиация | Tristan McLoughlin; Max-Planck-Institut für Gravitationsphysik, Albert-Einstein-Institut, Am Mühlenberg 1, 14476 Potsdam, Germany |
| Выпуск | 11 |
