Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/76504
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Type: Journal article
Title: Perturbative and nonperturbative renormalization in lattice QCD
Author: Gockeler, M.
Horsley, R.
Nakamura, Y.
Perlt, H.
Pleiter, D.
Rakow, P.
Schafer, A.
Schierholz, G.
Schiller, A.
Stüben, H.
Zanotti, J.
Citation: Physical Review. D. Particles, Fields, Gravitation and Cosmology, 2010; 82(11):114511:1-114511:32
Publisher: American Physical Soc
Issue Date: 2010
ISSN: 1550-7998
1550-2368
Statement of
Responsibility: 
M. Göckeler, R. Horsley, Y. Nakamura, H. Perlt, D. Pleiter, P. E. L. Rakow, A. Schäfer, G. Schierholz, A. Schiller, H. Stüben, and J. M. Zanotti (QCDSF/UKQCD Collaborations)
Abstract: We investigate the perturbative and nonperturbative renormalization of composite operators in lattice QCD restricting ourselves to operators that are bilinear in the quark fields (quark-antiquark operators). These include operators which are relevant to the calculation of moments of hadronic structure functions. The nonperturbative computations are based on Monte Carlo simulations with two flavors of clover fermions and utilize the Rome-Southampton method also known as the regularization independent momentum or RI-MOM scheme. We compare the results of this approach with various estimates from lattice perturbation theory, in particular, with recent two-loop calculations.
Rights: © 2010 The American Physical Society
RMID: 0020120150
DOI: 10.1103/PhysRevD.82.114511
Appears in Collections:Chemistry and Physics publications

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