Simulations of supersymmetric Yang-Mills theory
| Autor: | Demmouche, K., Farchioni, F., Ferling, A., Montvay, I., Munster, G., Scholz, E. E., Wuilloud, J. |
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| Jazyk: | angličtina |
| Rok vydání: | 2009 |
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| Zdroj: | Proceedings of Science LAT2009, 268 (2009). doi:10.22323/1.091.0268 Proceedings of The XXVII International Symposium on Lattice Field Theory — PoS(LAT2009)-Sissa Medialab Trieste, Italy, 2010.-ISBN-doi:10.22323/1.091.0268 Proceedings of The XXVII International Symposium on Lattice Field Theory — PoS(LAT2009)-Sissa Medialab Trieste, Italy, 2010.-ISBN-doi:10.22323/1.091.026827. International Symposium on Lattice Field Theory, LAT2009, Beijing, China, 2009-07-26-2009-07-31 |
| DOI: | 10.22323/1.091.0268 |
| Popis: | Results of a numerical simulation concerning the low-lying spectrum of four-dimensional N=1 SU(2) Supersymmetric Yang-Mills (SYM) theory on the lattice with light dynamical gluinos are reported. We use the tree-level Symanzik improved gauge action and Wilson fermions with stout smearing of the gauge links in the Wilson-Dirac operator. The configurations are produced with the Two-Step Polynomial Hybrid Monte Carlo (TS-PHMC) algorithm. We performed simulations on lattices up to a size of 24^3x48 at \beta=1.6. Using QCD units with the Sommer scale being set to r_0=0.5 fm, the lattice spacing is about a~0.09 fm, and the spatial extent of the lattice corresponds to 2.1 fm to control finite size effects. At the lightest simulated gluino mass our results indicate a mass for the lightest gluino-glue bound state, which is considerably heavier than the values obtained for its possible superpartners. Whether supermultiplets are formed remains to be studied in upcoming simulations. Comment: 7 pages, talk presented at The XXVII International Symposium on Lattice Field Theory, July 26-31 2009, Peking University, Beijing, China |
| Databáze: | OpenAIRE |
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