Constantinou, M. and Costa, M. and Goeckeler, M. and Horsley, R. and Panagopoulos, H. and Perlt, H. and Rakow, P. E. L. and Schierholz, G. and Schiller, A. (2013) Perturbatively improving regularization-invariant momentum scheme renormalization constants. PHYSICAL REVIEW D, 87 (9): 096019. ISSN 2470-0010, 2470-0029
Full text not available from this repository. (Request a copy)Abstract
The determination of renormalization factors is of crucial importance in lattice QCD. They relate the observables obtained on the lattice to their measured counterparts in the continuum in a suitable renormalization scheme. Therefore, they have to be computed as precisely as possible. A widely used approach is the nonperturbative Rome-Southampton method. It requires, however, a careful treatment of lattice artifacts. In this paper we investigate a method to suppress these artifacts by subtracting one-loop contributions to renormalization factors calculated in lattice perturbation theory. We compare results obtained from a complete one-loop subtraction with those calculated for a subtraction of contributions proportional to the square of the lattice spacing.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | NONPERTURBATIVE RENORMALIZATION; LATTICE; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics > Chair Professor Braun > Group Tilo Wettig |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 09 Apr 2020 05:39 |
| Last Modified: | 09 Apr 2020 05:39 |
| URI: | https://pred.uni-regensburg.de/id/eprint/16652 |
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