Abstract
In this work, we perform parameter tuning with dynamical anisotropic clover lattices using the Schrödinger functional and stout-smearing in the fermion field. We find that ξR/ξ0 is relatively close to 1 in our parameter search, which allows us to fix ξ0 in our runs. We proposed to determine the gauge and fermion anisotropy in a Schrödinger-background small box using Wilson loop ratios and PCAC masses. We demonstrate that these ideas are equivalent to but more efficient than the conventional meson dispersion approach. The spatial and temporal clover coefficients are fixed to the tree-level tadpole-improved clover values, and we demonstrate that they satisfy the nonperturbative condition determined by Schrödinger functional method.
| Original language | English |
|---|---|
| Article number | 119 |
| Journal | Proceedings of Science |
| Volume | 42 |
| State | Published - 2007 |
| Externally published | Yes |
| Event | 25th International Symposium on Lattice Field Theory, LATTICE 2007 - Regensburg, Germany Duration: Jul 30 2007 → Aug 4 2007 |
Funding
Our generation of two-flavor anisotropic (ξR = 3) Wilson fermion configurations is complete. This includes two lattice sizes: L ≈ 1.8, 2.6 fm with mpi ≈ 400, 570 MeV. In the near future, we will begin to fine tune the strange quark mass. We will also calculate O(a)-improved coefficients: cV,A and ZV,A for people who are interested in using these configurations for other physics. Acknowledgements This work was done using the Chroma software suite[19] on clusters at Jefferson Laboratory using time awarded under the SciDAC Initiative. Authored by Jefferson Science Associates, LLC under U.S. DOE Contract No. DE-AC05-06OR23177. The U.S. Government retains a nonexclusive, paid-up, irrevocable, world-wide license to publish or reproduce this manuscript for U.S. Government purposes. References
| Funders | Funder number |
|---|---|
| U.S. Department of Energy | DE-AC05-06OR23177 |