Renormalisation of composite operators in lattice QCD: perturbative versus nonperturbative

M. Göckeler; R. Horsley; Y. Nakamura; H. Perlt; D. Pleiter; P. E. L. Rakow; A. Schäfer; G. Schierholz; A. Schiller; H. Stüben; J. M. Zanotti

Renormalisation of composite operators in lattice QCD: perturbative versus nonperturbative

High Energy Physics - Lattice 2011-01-27 v1

Authors: M. Göckeler , R. Horsley , Y. Nakamura , H. Perlt , D. Pleiter , P. E. L. Rakow , A. Schäfer , G. Schierholz , A. Schiller , H. Stüben , J. M. Zanotti

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Abstract

The perturbative and nonperturbative renormalisation of quark-antiquark operators in lattice QCD with two flavours of clover fermions is investigated within the research programme of the QCDSF collaboration. Operators with up to three derivatives are considered. The nonperturbative results based on the RI-MOM scheme are compared with estimates from one- and two-loop lattice perturbation theory.

Keywords

lattice QCD composite operators renormalisation clover fermions RI-MOM scheme

Cite

@article{arxiv.1010.1360,
  title  = {Renormalisation of composite operators in lattice QCD: perturbative versus nonperturbative},
  author = {M. Göckeler and R. Horsley and Y. Nakamura and H. Perlt and D. Pleiter and P. E. L. Rakow and A. Schäfer and G. Schierholz and A. Schiller and H. Stüben and J. M. Zanotti},
  journal= {arXiv preprint arXiv:1010.1360},
  year   = {2011}
}

Comments

7 pages, 4 figures, talk given at the XXVIII International Symposium on Lattice Field Theory (Lattice 2010), June 14-19 2010, Villasimius, Italy

Renormalisation of composite operators in lattice QCD: perturbative versus nonperturbative

Abstract

Keywords

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