Towards a determination of Csw using Numerical Stochastic Perturbation Theory (NSPT)

C. Torrero; G. S. Bali

Towards a determination of Csw using Numerical Stochastic Perturbation Theory (NSPT)

High Energy Physics - Lattice 2010-01-21 v1

Authors: C. Torrero , G. S. Bali

Abstract

We outline a strategy to compute the second-loop contribution to the Csw coefficient of the Sheikoleslami-Wohlert-Wilson fermion action by means of NSPT. We also present preliminary results for higher-order integrators for the Langevin evolution within NSPT. At fixed numerical accuracy, these integrators considerably reduce the required computer-time.

Keywords

Numerical Stochastic Perturbation Theory Csw coefficient Sheikoleslami-Wohlert-Wilson fermion action Langevin evolution higher-order integrators

Cite

@article{arxiv.0812.1680,
  title  = {Towards a determination of Csw using Numerical Stochastic Perturbation Theory (NSPT)},
  author = {C. Torrero and G. S. Bali},
  journal= {arXiv preprint arXiv:0812.1680},
  year   = {2010}
}

Comments

7 pages. Presented at 26th International Symposium on Lattice Field Theory (Lattice 2008), Williamsburg, Virginia, 14-20 Jul 2008

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