کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1840668 | 1527742 | 2014 | 29 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Two-loop low-energy effective action in Abelian supersymmetric Chern–Simons matter models Two-loop low-energy effective action in Abelian supersymmetric Chern–Simons matter models](/preview/png/1840668.png)
We compute two-loop low-energy effective actions in Abelian Chern–Simons matter models with N=2N=2 and N=3N=3 supersymmetry up to four-derivative order. Calculations are performed with a slowly-varying gauge superfield background. Though the gauge superfield propagator depends on the gauge fixing parameter, it is shown that the obtained results are independent of this parameter. In the massless case the considered models are superconformal. We demonstrate that the superconformal symmetry strongly restricts the form of two-loop quantum corrections to the effective actions such that the obtained terms have simpler structure than the analogous ones in the effective action of three-dimensional supersymmetric electrodynamics (SQED) with vanishing topological mass.
Journal: Nuclear Physics B - Volume 881, April 2014, Pages 42–70