%0 Journal Article %1 Giedt:2005ae %A Giedt, Joel %D 2005 %J Nucl. Phys. %K D2 Lattice LatticeSusy N2 NonrenTheorem RSymmetr Simulations WessZuminoModel %P 210-232 %R 10.1016/j.nuclphysb.2005.08.004 %T R-symmetry in the Q-exact (2,2) 2d lattice Wess-Zumino model %U http://www.slac.stanford.edu/spires/find/hep/www?eprint=hep-lat/0507016 %V B726 %X Abstract: In this article we explore the R-symmetry of the (2,2) 2d Wess-Zumino model. We study whether or not this symmetry is approximately realized in the Q-exact lattice version of this theory. Our study is nonperturbative: it relies on Monte Carlo simulations with dynamical fermions. Irrelevant operators in the lattice action explicitly break the R-symmetry. In spite of this, it is found to be a symmetry of the effective potential. We find nonperturbative evidence that the nonrenormalization theorem of the continuum theory is recovered in the continuum limit; e.g., there is no additive mass renormalization. In our simulations we find that Fourier acceleration of the hybrid Monte Carlo algorithm allows us to avoid difficulties with critical slowing-down.

@article{Giedt:2005ae, abstract = { Abstract: In this article we explore the R-symmetry of the (2,2) 2d Wess-Zumino model. We study whether or not this symmetry is approximately realized in the Q-exact lattice version of this theory. Our study is nonperturbative: it relies on Monte Carlo simulations with dynamical fermions. Irrelevant operators in the lattice action explicitly break the R-symmetry. In spite of this, it is found to be a symmetry of the effective potential. We find nonperturbative evidence that the nonrenormalization theorem of the continuum theory is recovered in the continuum limit; e.g., there is no additive mass renormalization. In our simulations we find that Fourier acceleration of the hybrid Monte Carlo algorithm allows us to avoid difficulties with critical slowing-down. }, added-at = {2009-04-06T21:17:16.000+0200}, archiveprefix = {arXiv}, author = {Giedt, Joel}, biburl = {https://www.bibsonomy.org/bibtex/2c21e70123b70e4fccac84acf9813a572/gber}, description = {SPIRES-HEP: FIND EPRINT HEP-LAT/0507016}, doi = {10.1016/j.nuclphysb.2005.08.004}, eprint = {hep-lat/0507016}, interhash = {cbd028565cf72ef94d73004e30f1b11d}, intrahash = {c21e70123b70e4fccac84acf9813a572}, journal = {Nucl. Phys.}, keywords = {D2 Lattice LatticeSusy N2 NonrenTheorem RSymmetr Simulations WessZuminoModel}, pages = {210-232}, slaccitation = {%%CITATION = HEP-LAT/0507016;%%}, timestamp = {2009-04-06T21:17:16.000+0200}, title = {{R-symmetry in the Q-exact (2,2) 2d lattice Wess-Zumino model}}, url = {http://www.slac.stanford.edu/spires/find/hep/www?eprint=hep-lat/0507016}, volume = {B726}, year = 2005 }