Non-perturbative improvement of stout-smeared three flavour clover fermions

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

doi:10.1103/PhysRevD.79.094507

Non-perturbative improvement of stout-smeared three flavour clover fermions

N. Cundy, M. Göckeler, R. Horsley, T. Kaltenbrunner, A. D. Kennedy, Y. Nakamura, H. Perlt, D. Pleiter, P. E. L. Rakow, A. Schäfer, G. Schierholz, A. Schiller, H. Stüben, J. M. Zanotti

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract / Description of output

We discuss a 3-flavour lattice QCD action with clover improvement in which the fermion matrix has single level stout smearing for the hopping terms together with unsmeared links for the clover term. With the (tree-level) Symanzik improved gluon action this constitutes the Stout Link Non-perturbative Clover or SLiNC action. To cancel O(a) terms the clover term coefficient has to be tuned. We present here results of a non-perturbative determination of this coefficient using the Schroedinger functional and as a by-product a determination of the critical hopping parameter. Comparisons of the results are made with lowest order perturbation theory

Original language	English
Pages (from-to)	094507
Number of pages	16
Journal	Physical Review D
Volume	79
DOIs	https://doi.org/10.1103/PhysRevD.79.094507
Publication status	Published - May 2009

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title = "Non-perturbative improvement of stout-smeared three flavour clover fermions",

abstract = "We discuss a 3-flavour lattice QCD action with clover improvement in which the fermion matrix has single level stout smearing for the hopping terms together with unsmeared links for the clover term. With the (tree-level) Symanzik improved gluon action this constitutes the Stout Link Non-perturbative Clover or SLiNC action. To cancel O(a) terms the clover term coefficient has to be tuned. We present here results of a non-perturbative determination of this coefficient using the Schroedinger functional and as a by-product a determination of the critical hopping parameter. Comparisons of the results are made with lowest order perturbation theory",

author = "N. Cundy and M. G{\"o}ckeler and R. Horsley and T. Kaltenbrunner and Kennedy, {A. D.} and Y. Nakamura and H. Perlt and D. Pleiter and Rakow, {P. E. L.} and A. Sch{\"a}fer and G. Schierholz and A. Schiller and H. St{\"u}ben and Zanotti, {J. M.}",

year = "2009",

month = may,

doi = "10.1103/PhysRevD.79.094507",

language = "English",

volume = "79",

pages = "094507",

journal = "Physical Review D",

issn = "1550-7998",

publisher = "American Physical Society",

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TY - JOUR

T1 - Non-perturbative improvement of stout-smeared three flavour clover fermions

AU - Cundy, N.

AU - Göckeler, M.

AU - Horsley, R.

AU - Kaltenbrunner, T.

AU - Kennedy, A. D.

AU - Nakamura, Y.

AU - Perlt, H.

AU - Pleiter, D.

AU - Rakow, P. E. L.

AU - Schäfer, A.

AU - Schierholz, G.

AU - Schiller, A.

AU - Stüben, H.

AU - Zanotti, J. M.

PY - 2009/5

Y1 - 2009/5

N2 - We discuss a 3-flavour lattice QCD action with clover improvement in which the fermion matrix has single level stout smearing for the hopping terms together with unsmeared links for the clover term. With the (tree-level) Symanzik improved gluon action this constitutes the Stout Link Non-perturbative Clover or SLiNC action. To cancel O(a) terms the clover term coefficient has to be tuned. We present here results of a non-perturbative determination of this coefficient using the Schroedinger functional and as a by-product a determination of the critical hopping parameter. Comparisons of the results are made with lowest order perturbation theory

AB - We discuss a 3-flavour lattice QCD action with clover improvement in which the fermion matrix has single level stout smearing for the hopping terms together with unsmeared links for the clover term. With the (tree-level) Symanzik improved gluon action this constitutes the Stout Link Non-perturbative Clover or SLiNC action. To cancel O(a) terms the clover term coefficient has to be tuned. We present here results of a non-perturbative determination of this coefficient using the Schroedinger functional and as a by-product a determination of the critical hopping parameter. Comparisons of the results are made with lowest order perturbation theory

U2 - 10.1103/PhysRevD.79.094507

DO - 10.1103/PhysRevD.79.094507

M3 - Article

SN - 1550-7998

VL - 79

SP - 094507

JO - Physical Review D

JF - Physical Review D

ER -

Non-perturbative improvement of stout-smeared three flavour clover fermions

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