Demmouche, K. and Farchioni, F. and Ferling, A. and Montvay, I. and Muenster, G. and Scholz, E. E. and Wuilloud, J. (2010) Simulation of 4d supersymmetric Yang-Mills theory with Symanzik improved gauge action and stout smearing. EUROPEAN PHYSICAL JOURNAL C, 69 (1-2). pp. 147-157. ISSN 1434-6044,
Full text not available from this repository. (Request a copy)Abstract
We report on the results of a numerical simulation concerning the low-lying spectrum of four-dimensional SU(2) Supersymmetric Yang-Mills (SYM) theory on the lattice with light dynamical gluinos. In the gauge sector the tree-level Symanzik improved gauge action is used, while we use the Wilson formulation in the fermion sector with stout smearing of the gauge links in the Wilson-Dirac operator. The ensembles of gauge configurations were produced with the Two-Step Polynomial Hybrid Monte Carlo (TS-PHMC) updating algorithm. We performed simulations on large lattices up to a size of 24(3)a <...48 at beta=1.6. Using QCD units with the Sommer scale being set to r (0)=0.5 fm, the lattice spacing is about aa parts per thousand integral 0.09 fm, and the spatial extent of the lattice corresponds to 2.1 fm. At the lightest simulated gluino mass the spin-1/2 gluino-glue bound state appeared to be considerably heavier than its expected super-partner, the pseudoscalar bound state. Whether supermultiplets are formed remains to be studied in upcoming simulations.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | IMPROVED LATTICE ACTION; WILSON FERMIONS; ALGORITHM; GLUINOS; MATRIX; MASSES; FLAVOR; QCD; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 14 Jul 2020 14:26 |
| Last Modified: | 14 Jul 2020 14:26 |
| URI: | https://pred.uni-regensburg.de/id/eprint/24220 |
Actions (login required)
 |
View Item |
