The volume source technique for flavor singlets: a second look
- 26 Downloads
We reconsider the volume source technique for the determination of flavor singlet quantities on the lattice. We point out a difficulty arising in the case of fermions in real representations of the gauge group and propose an improved version of the method (IVST) based on random gauge transformations of the background configuration. We compare the performance of IVST with the method based on stochastic estimators (SET). We consider the case of the N = 1 supersymmetric Yang-Mills theory, where just one fermionic flavor is present, the gluino in the adjoint representation, and only flavor singlet states are possible. This work is part of an inclusive analysis of the spectrum of the lightest particles of the theory, based on the simulation of the model on a \(16^3\cdot32\) lattice with dynamical gluinos in the Wilson scheme.
KeywordsField Theory Elementary Particle Quantum Field Theory Gauge Group Gauge Transformation
Unable to display preview. Download preview PDF.
- 4.K. Schilling, H. Neff, T. Lippert, hep-lat/0401005Google Scholar
- 9.R. Peetz, Ph.D. Thesis, University of Münster, 2003Google Scholar
- 10.F. Farchioni, R. Peetz, Eur. Phys. J. C (in press), hep-lat/0407036Google Scholar
- 11.F. Farchioni, A. Feo, T. Galla, C. Gebert, R. Kirchner, I. Montvay, G. Münster, A. Vladikas, Eur. Phys. J. C 23, 719 (2002)Google Scholar