| Автор | Nick Dorey |
| Автор | David Tong |
| Автор | Stefan Vandoren |
| Дата выпуска | 1998-04-01 |
| dc.description | Using standard field theory techniques we compute perturbative and instanton contributions to the Coulomb branch of three-dimensional supersymmetric QCD with N = 2 and N = 4 supersymmetry and gauge group SU(2). For the N = 4 theory with one massless flavor, we confirm the proposal of Seiberg and Witten that the Coulomb branch is the double-cover of the centered moduli space of two BPS monopoles constructed by Atiyah and Hitchin. Introducing a hypermultiplet mass term, we show that the asymptotic metric on the Coulomb branch coincides with the metric on Dancer's deformation of the monopole moduli space. For the N = 2 theory with N<sub>f</sub> flavors, we compute the one-loop corrections to the metric and complex structure on the Coulomb branch. We then determine the superpotential including one-loop effects around the instanton background. These calculations provide an explicit check of several results previously obtained by symmetry and holomorphy arguments. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Instanton effects in three-dimensional supersymmetric gauge theories with matter |
| Тип | paper |
| DOI | 10.1088/1126-6708/1998/04/005 |
| Electronic ISSN | 1029- 8479 |
| Print ISSN | 1126-6708 |
| Журнал | Journal of High Energy Physics |
| Том | 1998 |
| Первая страница | 5 |
| Последняя страница | 005 |
| Выпуск | 04 |
