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Nonperturbative determination of improvement coefficients using coordinate space correlators in Nf=2+1 lattice QCD

Korcyl, Piotr and Bali, Gunnar S. (2017) Nonperturbative determination of improvement coefficients using coordinate space correlators in Nf=2+1 lattice QCD. Physical Review D 95 (1).

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Other URL: http://doi.org/10.1103/PhysRevD.95.014505


Abstract

We determine quark mass dependent order a improvement terms of the form b(j)am for nonsinglet scalar, pseudoscalar, vector and axialvector currents using correlators in coordinate space on a set of Coordinated Lattice Simulations ensembles. These have been generated employing nonperturbatively improved Wilson fermions and the tree-level Luher-Weisz gauge action at beta = 3.4, 3.46, 3.55 and 3.7, ...

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Item type:Article
Date:2017
Institutions:Physics > Institute of Theroretical Physics
Physics > Institute of Theroretical Physics > Chair Professor Schäfer > Group Gunnar Bali
Identification Number:
ValueType
10.1103/PhysRevD.95.014505DOI
Keywords:IMPROVED GAUGE ACTION; WILSON FERMIONS; CONTINUUM-LIMIT; SUM-RULES; RENORMALIZATION; OPERATORS; CURRENTS; ORDERS; MASS;
Dewey Decimal Classification:500 Science > 530 Physics
Status:Published
Refereed:Yes, this version has been refereed
Created at the University of Regensburg:Yes
Item ID:38809
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