Nonperturbative renormalization in lattice QCD with three flavors of clover fermions: Using periodic and open boundary conditions

Buerger, Simon and Collins, S. and Goeckeler, Meinulf and Gruber, M. and Piemonte, S. and Schaefer, Andreas and Sternbeck, A. and Wein, P. (2021) Nonperturbative renormalization in lattice QCD with three flavors of clover fermions: Using periodic and open boundary conditions. PHYSICAL REVIEW D, 103 (9): 094511. ISSN 2470-0010, 2470-0029

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Abstract

We present the nonperturbative computation of renormalization factors in the RI'-(S)MOM (regularization independent (symmetric) momentum subtraction) schemes for the QCD gauge field ensembles generated by the CLS (coordinated lattice simulations) effort with three flavors of nonperturbatively improvedWilson (clover) quarks. We use ensembles with the standard (anti-)periodic boundary conditions in the time direction as well as gauge field configurations with open boundary conditions. Besides flavor-nonsinglet quark-antiquark operators with up to two derivatives we also consider three-quark operators with up to one derivative. For the RI'-SMOM scheme results we make use of the recently calculated three-loop conversion factors to the (MS) over bar scheme.

Item Type: Article
Uncontrolled Keywords: LOOP ANOMALOUS DIMENSION; QUARK MASS; 3-QUARK OPERATORS; 2ND MOMENT; (MS)OVER-BAR; IMPROVEMENT; INVARIANT; CURRENTS;
Subjects: 500 Science > 530 Physics
Divisions: Physics > Institute of Theroretical Physics > Chair Professor Schäfer > Group Andreas Schäfer
Depositing User: Dr. Gernot Deinzer
Date Deposited: 09 Aug 2022 14:17
Last Modified: 09 Aug 2022 14:17
URI: https://pred.uni-regensburg.de/id/eprint/46255

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