Kaon B-parameter using Overlap Fermions
高能物理 - 格点
2015-06-25 v1 高能物理 - 唯象学
摘要
I present first results from an in-progress calculation of B_K in quenched approximation using overlap fermions. My particular implementation of the overlap uses a kernel with nearest and next-nearest neighbor interactions and HYP-blocked gauge connections. Matching to the continuum NDR regularization is done perturbatively. I present preliminary results at beta=5.9 and 6.1 (lattice spacings 0.125 and 0.09 fm) for quark masses, pseudoscalar decay constants, and B-parameter -- B_K(NDR(mu=2 GeV) is 0.66(3-4).
引用
@article{arxiv.hep-lat/0208054,
title = {Kaon B-parameter using Overlap Fermions},
author = {Thomas DeGrand},
journal= {arXiv preprint arXiv:hep-lat/0208054},
year = {2015}
}
备注
3 pages, Latex, 3 postscript figures. COLO-HEP-483; Lattice2002(matrixel)