Finite Volume Errors in $B_K$

Jangho Kim; Hyung-Jin Kim; Weonjong Lee; Chulwoo Jung; Stephen R. Sharpe

Finite Volume Errors in $B_K$

High Energy Physics - Lattice 2011-11-02 v1

Authors: Jangho Kim , Hyung-Jin Kim , Weonjong Lee , Chulwoo Jung , Stephen R. Sharpe

Abstract

We discuss finite volume errors in our calculations of $B_K$ using improved staggered fermions on the MILC asqtad lattices. Using GPUs, we are now able to extrapolate using next-to-leading order (NLO) staggered SU(2) chiral perturbation theory including the finite volume corrections arising from pion loops. We find that the impact of FV fitting is very small, giving a 0.5% shift in the continuum limit.

Keywords

finite volume effects in lattice qcd

Cite

@article{arxiv.1111.0128,
  title  = {Finite Volume Errors in $B_K$},
  author = {Jangho Kim and Hyung-Jin Kim and Weonjong Lee and Chulwoo Jung and Stephen R. Sharpe},
  journal= {arXiv preprint arXiv:1111.0128},
  year   = {2011}
}

Comments

7 pages, 6 figures, Lattice 2011 proceeding

Related papers

View all related →