| Автор | Massimo Bianchi |
| Автор | Stefano Kovacs |
| Автор | Giancarlo Rossi |
| Автор | Yassen S. Stanev |
| Дата выпуска | 1999-08-01 |
| dc.description | We show that the logarithmic behaviour seen in perturbative and non perturbative contributions to Green functions of gauge-invariant composite operators in N = 4 SYM with SU(N) gauge group can be consistently interpreted in terms of anomalous dimensions of unprotected operators in long multiplets of the superconformal group SU(2,2|4). In order to illustrate the point we analyse the short-distance behaviour of a particularly simple four-point Green function of the lowest scalar components of the N = 4 supercurrent multiplet. Assuming the validity of the Operator Product Expansion, we are able to reproduce the known value of the one-loop anomalous dimension of the single-trace operators in the Konishi supermultiplet. We also show that it does not receive any non-perturbative contribution from the one-instanton sector. We briefly comment on double- and multi-trace operators and on the bearing of our results on the AdS/SCFT correspondence. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | On the logarithmic behaviour in N = 4 SYM theory |
| Тип | paper |
| DOI | 10.1088/1126-6708/1999/08/020 |
| Electronic ISSN | 1029- 8479 |
| Print ISSN | 1126-6708 |
| Журнал | Journal of High Energy Physics |
| Том | 1999 |
| Первая страница | 20 |
| Последняя страница | 020 |
| Выпуск | 08 |
